1. Which of the following waves can vacuum and select the using the codes given propagate in a vacuum and select the correct answer using the codes given below the list? I. Radio waves II. Light wave Codes III. X-ray IV. Ultrasonic sound

2. Consider the following statements with reference to X-rays I. They produce heat when absorbed by matter. II. They are generated when fast moving electron strike a metal target. III. They can penetrate through a thin sheet of aluminium. Which of the following statements given above are correct?
3. Which of the following statements is/are true? 1. The angle of the axis in relation to the planer in which the earth revolves around the sun is not constant. 2. The amount of energy given off by the sun changes with the transparency of the atmosphere. Select the correct answer using the codes given below
4. In terms of magnetic properties, oxygen belongs to
5. An objects is placed at the focus of a concave mirror. The image will be
6. Which of the following statements given below is correct in the respect of a geostationary satellite?
7. What will happen if the star having mass greater than five times of the Sun is dead?
8. A current I flows through a potential difference V in an electrical circuit containing a resistance R. The product of V and I i.e., VI may be understood as
9. In general what is the range of frequency of the ''Message Signal''?
10. Gravitational force shares a common feature with electromagnetic force. In both cases, the force is
11. Which one of the following phenomena shows particle nature of light?
12. What is the function of a microphone?
13. Which one of the following is deviated by an electric field?
14. Which one among the following lasers is used in cancer treatment?
15. Consider the following statements. I. Atom bomb is based upon the principle of uncontrolled nuclear fusion. II. Hydrogen bomb is based upon the principle of uncontrolled nuclear fusion. III. Nuclear reactor is based upon the principle of uncontrolled nuclear fusion. Which of the statements given above is/are correct?
16. Why is it difficult to transmit audio signals directly?
17. Which one of the following statements about uranium is correct?
18. Modern movie songs released are the best in quality of sound. The rich quality of sound is due to which one of the following?
19. Consider the following communication systems I. Fax II. E-mail Ill. Teleconferencing IV. Mobile telephone Which of the communication systems given above are ''digital communication systems''?
20. The impurity atom with which pure silicon should be doped to make a p-type semiconductor are those of
21. Which one of the following planets is said to be ''twin sister'' of the Earth?
22. Which one of the following pairs of physical quantities may be represented in the same unit?
23. The spread in colours in a rainbow on sky is primarily due to
24. Who among the following gave the first experimental value of G?
25. A cold soft drink is kept on balance. When the cap is opened, then the weight
26. Consider the following statements I. Electrons are universal constituents of matter. II. J.J. Thomson received the very first Nobel Prize in physics for discovering the electron. III. The mass of an electron is about 1/2000 that of neutron. IV. According to Bohr the linear momentum of the electron is quantised in the Hydrogen atom. Which of the statements given above are correct?
27. Light Emitting Diode (LED) converts
28. Two boats are moving in same direction in a river. What is the best condition so that the move parallel in the same direction?
29. Which of the following has the least penetrating power?
30. Optical fibre mainly used in communication is based on
31. A solid sphere, disc and solid cylinder all of same mass and made of same material are allowed to roll down (from rest) on incline plane then
32. Arrange the following electromagnetic waves according to their decreasing energy and select the correct answer
33. When a red glass is heated in dark room it will seem
34. Which one of the following causes green house effect?
35. Insects are able to run on the surface of water because
36. Consider the following statements I. Atom bomb is an example nuclear fission. II. Hydrogen bomb is an example of nuclear fusion. Which of the statements given above is/are correct?
37. Cryogenic engines find application in
38. Why is it easier to swim in sea water?
39. If there were no gravity, which of the following will not be there for a fluid?
40. In scuba diving, while ascending towards the water surface, there is a danger of bursting the lungs. It is because
41. The celsius temperature is a/an
42. A person standing at the middle point of a wooden ladder which starts slipping between a vertical wall and the floor of a room, While continuing to remain in a vertical plane. The path traced by a person standing at the middle point of the slipping ladder is
43. If the spinning speed of the earth is increased then the weight of body at the equator
44. When the light is passed through a prism, the colour which deviates least is
45. Two balloons are blown into spherical shape of unequal size and are connected through a narrow tube. Then what will observe?
46. Confirmation of the presence of Higgs Boson will justify
47. Which of the following cannot be emitted by radioactive substances during their decay?
48. For which one of the following is capillary not the reason only?
49. The focal length of convex lens is
50. Light Emitting Diode (LED) converts
51. The most familiar form of radiant energy in sunlight that cause tanning and has the potential for causing melanoma in humans is called
52. Consider the following statements I. Clear sky appears blue due to poor scattering of blue wavelength of visible light. II. Red part of light shows more scattering than blue light in the atmosphere. III. In the absence of atmosphere, there would be no scattering of light and sky will be black. Which of the statements given above is/are correct?
53. Consider the following statements If there were no phenomenon of capillarity 1. it would be difficult to use a kerosene lamp 2. one would not be able to use a straw to consume a soft drink 3. the blotting paper would fail to function 4. the big trees that we see around would not have grown on the Earth Which of the statements given above is/are correct?
54. An athlete diving off high springboard can perform a variety of exercise in the air before entering the water body. Which one of the following parameters will remain constant during the fall?
55. A body lying at rest suddenly breaks into two parts of equal masses which starts moving. The parts will move in
56. Now a day, most of buildings are made by having at least two layers of walls with a gap in between. Because
57. A perfect black body has the unique characteristic feature as
58. Which of the following are electromagnetic waves? I. X-rays II. Visible light III. IR- rays IV. Alpha rays Select the correct answer using the codes given below
59. If two conducting spheres are separately charged and then brought in contact
60. In the electric supply lines in India, which parameter is kept constant?
61. Which one of the following is used to determine the age of human fossils?
62. To shield an instrument from an external magnetic field it may be placed in a cabinet made of
63. The scent sprayer is based on
64. Consider the following statements. I. Diamagnetic substances have positive permeability. II. Diamagnetic substances have negative susceptibility. Which of the following statements given above is/are correct?
65. A person is standing on a rotating stool spreading his arms. What will happen if he suddenly contracts his arm?
66. A micro wave oven uses wave with a
67. Consider the following machines I. Hydraulic lift II. Aneroid barometer Which of the machines given above is/are working on the '' Pascal's law''?
68. In which of the following cases lies the broadcast band of FM?
69. A circular disc is to be made by using iron and aluminium so that it acquired maximum moment of inertia about the geometrical axis. It is possible with
70. How is the pressure cooker work?
71. Which type/types of pen uses/use capillary action in addition to gravity for flow of ink?
72. Post office box is a device for measuring resistant based on the principle of
73. Which waves are used in sonography?
74. Two thin wooden sticks are floating on the surface of water close to each other. A hot needle touches the water between them. How will the sticks react to it?
75. Which one of the following is not an amorphous substance?
76. Why is the machine function well with lubricant?
77. The blue colour of sky is due to the phenomenon of
78. A thin pin of iron can be made to float on water-drinking in a bowl. This phenomenon is due to the
79. What enables us to write on the black board with chalk?
80. A truck and a car are moving with equal velocity. On applying the brake both will stop after certain distance then which one of the following statements is correct?
81. To start your loaded trolley bag, you exert more force than when it is moving. This is an example of
82. Soap helps in the cleaning of cloths because
83. Which one of the following pairs of rays is electromagnetic in nature?
84. You placed a car in an open a parking area in a summer day. After a few hours, you noticed that the heat is trapped inside the car. This phenomenon is known as
85. During wind storm, the roofs of houses covered with GI Sheets may be blown off because
86. When you pull out the plug connected to an electric appliance, you will often observe a spark. To which property of the appliance is this related?
87. Nearly 30% of the solar radiations return back to the space without contributing anything to the earth' s surface temperature. This amount of radiation is known as
88. By which one of the following, an old written material which cannot be read easily, can be read?
89. A mirror produces magnified erect image of an object. The nature of the mirror is
90. Why are the inner lining of hot water made up of copper?
91. A coin immersed in water pond appears to be raised when view from the top. What is this due to?
92. Which of the following wavelengths will suffer maximum deviation while passing through a prism?
93. Cavitation is a special application property exhibited only by
94. A radar beam is sent onto a moving aeroplane in opposite direction of its approach. In which of these way it will be affected?
95. Which one of the following can convert the alternating current into direct current?
96. Who among the following received Nobel prize twice for the same subject?
97. The phenomenon of bursting of hydrogen balloon is based on
98. In the winter, we get warmer by using,two blankets instead of one, why?
99. A cyclotron can accelerate
100. The image form by an object of a compound microscope is
101. Hair of a shaving brush cling together when the brush is removed from water due to
102. Consider the following metals I. Uranium II. Plutonium Which of the following metals given above is/are used in making nuclear weapons?
103. When light enters from air to water, then its
104. Telescopes are placed in space to view distant galaxies primarily to
105. Consider the following statements I. The energy of stars are due to nuclear fission reaction. II. The reflection of light causes the twinkling of stars. Which of the statements given above is/are correct?
106. The temperature of a body is an indicator of
107. SONAR is mostly used by
108. Which one of the following common devices works on the basis of the principle of mutual induction?
109. A table cloth can be pulled from a table without dislodging the dishes. It is because of
110. The time period of a simple pendulum having a spherical wooden bob is 2 s. If the bob is replaced by a metallic one twice as heavy, the time period will be
111. Which one among the following radiations carries maximum energy?
112. Which of the following is true when the cells are connected in series?
113. When a ball drops onto the floor it bounces. Why does it bounce?
114. In nuclear reaction which one of the following is conserved?
115. Consider the following statements with reference to total internal reflection I. Shinning of diamond. II. Formation of mirage. Which of the statements given above is/are correct?
116. Gases begin to conduct electricity at the low pressure because
117. Which one of the following has given the centripetal force for a car moving on a road?
118. Ball bearings are used in bicycles, cars, etc., because
119. Which one of the following is the weakest force?
120. In a radioactive decay, a p-particle is emitted. This happens because
121. Consider the following communication systems I. Teleprinting II. Telegraphy Ill. Radio broadcast IV. Fax Which of the communication system given above are ''analogue cornmunication systems''?
122. Which one of the following remains constant while throwing the ball upward?
123. Select the correct answer
124. Consider the following phenomena 1. Size of the sun at dusk 2. Colour of the sun at dawn 3. Moon being visible at dawn 4. Twinkle of stars in the sky 5. Polestar being visible in the sky Which of the above are optical illusions?
125. A planet is moving around the sun in an elliptical orbit. Its speed is
126. Which of the following device is fully duplex
127. When we speak into a microphone, what type of vibrations the diaphragm executes?
128. Which one of the following forces lead to separation of the cream from the churned milk?
129. A team of scientists at Brookhaven National Laboratory including those from India created the heaviest anti-matter(anti-helium nucleus). What is/are the implication/ implications of the creation of anti-matter? 1. It will make mineral prospecting and oil exploration easier and cheaper. 2. It will help probe the possibility of the existence of stars and galaxies made of anti-matter. 3. It will help to understand the evolution of the universe. Select the correct answer using the codes given below
130. Which one of the following is correct when a body moving in a circular path with constant speed?
131. Which one is not produce by sound waves in air?
132. Why laser is used in the pipe alignment?
133. Which one of the following phenomena is associated with the fire flies giving cold light in night?
134. Consider the following statements I. Transverse waves occur when a disturbance creates oscillations perpendicular to the propagation. II. Longitudinal waves occur when the oscillations are parallel to the direction of propagation. Which of the following statements given above is/are correct?
135. Select the correct statement from the following I. Radioactive decay obeys the law of exponential. II. Electrons orbiting the nucleus are responsible for the radioactivity. Ill. Half life period is greater than mean life period. IV. After disintegration radiocarbon is converted to C-14. Select the correct answer using the codes given below
136. Which one of the following reactions is the main cause of the energy radiation from the sun?
137. Who had showed that the electric and magnetic waves are equal in vacuum?
138. The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?
139. The cat survive fall from a height much more than human or any other animal. It is because the cat
140. The blackboard seems black because it
141. If the radius of the Earth is made 114th, the duration of an year will become
142. Mirage is a phenomenon due to
143. Consider the following materials I. Bronze II. Graphite III. Dirty water IV. Concrete Which of the following materials given above are conductors?
144. Which one among the following rays has minimum wavelength?
145. A space ship is from earth to moon and back. The greatest energy required for the spaceship is to overcome the difficulty in
146. The common soap used in washing is worked by
147. Who gave the first evidence of Big-bang theory?
148. Which one of the following matter form the core of transformer?
149. Which one of the following instruments is used by the submarine sailors to see the objects on the surface?
150. When the matter is cooled to very low temperature, it will form
151. Consider the following statements I. If cyan and yellow coloured circles are intersected, the intersected area will have green. II. If red and green coloured circles intersect, the intersected will have magenta. Which of the statements given above is/are correct?
152. A liquid is kept in a regular cylindrical vessel up to a certain height. If this vessel is replaced by another cylindrical vessel having half the area of cross-section of the bottom, the pressure on the bottom will
153. Which one of the following will have the maximum cohesive force?
154. Half portion of a rectangular piece of ice is wrapped with a white piece of cloth while the other half with black one. In this context, which one of the following statements is correct?
155. Which one of the following statements is correct?
156. A liquid is kept in a regular cylindrical vessel up to a certain height. If this vessel is replaced by another cylindrical vessel having half the area of cross-section of the bottom, the pressure on the bottom will
157. Which one of the following mechanisms uses the Pascal's law?
158. Which one among the following satellites is used to reflect the radio-signals back to the Earth?
159. When a horse pulls a cart, the force that makes the horse run forward is the force exerted by
160. Stars are twinkling due to
161. Which one of the following statements is correct?A slab of ice kept in a room,
162. Which one of the following reactions is the main cause of the energy radiation from the Sun?
163. If we move from equator to pole, the value of g
164. Consider the following statements regarding the electric fused wire I. It has high melting point. II. It has very low specific resistance. III. It is connected in parallel with the electric circuit. Which of the statements given above is/are not correct?
165. An astronaut of mass 60 kg is revolving around the Earth in a satellite. What will be his weight inside the satellite (assuming g = 10 m/s)?
166. Which of the Following is/ are the unit of energy? I. Calorie II. Joule III. Electric-volt IV. Watt Select the answer by using the codes given below?
167. Which of the following has the most penetrating power?
168. In an satellite a space traveller tries to fill ink in a pen by dipping it in ink. The amount of the ink filled in the pen as compared to the quantity of ink filled on the earth's surface will be
169. Which of the factors given above is/are responsible for the weightlessness while orbiting the Earth, in space? I. Acceleration II. Zero gravity Select the correct answer using the codes
170. Which one of the following materials will have maximum sound velocity?
171. Consider the following statements I. Most of the IRS are launched by PSLV. II. PSLV is used to place satellites in orbit of 3600 km above the Earth's surface. Which of the statements given above is/are correct?
172. Consider the following statements I. Sputnik was the first artificial satellite in the world to be launched by Russia in 1957. II. Telsar was the first satellite launched by the USA. Which of the statements given above is/are correct?
173. Two identical piano wires have same fundamental frequency when kept under the same tension. What will happen if tension of one of the wires id slightly increased and both the wires are made to vibrate simultaneously?
174. Which one among the following correctly defines a unit magnetic pole in SI units? It is the pole which when placed in air at a distance of
175. After rising a short distance, the smooth column of smoke from a cigarette breaks up into irregular and random pattern. In a similar fashion, a stream of fluid flowing past an obstacle breaks up into eddies and vortices which give the flow irregular velocity components transverse to the flow direction. Other examples include the wakes left in water by moving ships, the sound produced by whistling and by wind instruments. These examples are the results of