CEED - General Physics 1000+ MCQ [Solved] PDF Download

1. Hydrophone is an instrument used
A. for measuring relative density of liquids
B. by ships to pass on messages
C. for determining the depth of ocean bottoms etc.
D. by deaf people to aid hearing
Answer : C

2. Compared to the atomic bomb, the destructive power of a hydrogen bomb is
A. greater
B. less
C. equal
D. can't be determined
Answer : A

3. Like magnetic poles
A. attract each other
B. repel each other
C. neither attract nor repel
D. attract or repel depending upon the conditions
Answer : B

4. An ammeter has
A. a high resistance
B. a very low resistance
C. no resistance at all
D. resistance of 400 ? w
Answer : B

5. When we tighten the string of a sitar or tanpura its pitch
A. remains the same
B. increases
C. decreases
D. None of the above
Answer : B

6. A hydrogen bomb is based on
A. nuclear fusion
B. nuclear fission
C. Both (a) and (b) above
D. Neither (a) nor (b)
Answer : A

7. If a bar magnet is broken into two pieces
A. both pieces will lose their magnetism
B. one piece will have North Pole on both ends and the other South Pole on its both ends
C. each will remain a magnet with North Pole at one end and South Pole at the other
D. the longer piece will behave as a bar magnet while the smaller will have no magnetism at all
Answer : C

8. The escape velocity of a satellite projected from the surface of the earth is independent of
A. the mass of earth
B. the mass of the satellite
C. the radius of the earth
D. gravitation of the earth
Answer : B

9. A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan
A. increases
B. decreases
C. remains the same
D. first increases and then decreases
Answer : C

10. A convex mirror always produces
A. an erect, virtual image of diminished size
B. an erect, real image of diminished size
C. an erect, real image of double size
D. a virtual image of double size
Answer : A

11. A star contains
A. about 75% of hydrogen
B. 22% helium
C. traces of most other elements including oxygen, neon, carbon and nitrogen
D. All the above
Answer : D

12. Mercury is used in a barometer because
A. its density being very high 13.6 g/cm3 the height of mercury column is conveniently small
B. at the ordinary temperature its vapour pressure is small
C. it is opaque and does not wet glass
D. All the above
Answer : D

13. A transformer
A. converts direct current into alternating current
B. converts alternating current into direct current
C. steps up or steps down a given alternating current voltage
D. supplies current with zero resistance
Answer : C

14. A rod of brass is held in hand and rubbed with fur. The rod is found to have
A. no charge
B. positive charge
C. negative charge
D. can't be said
Answer : A

15. The mode of travel of heat energy from the sun across the empty space beyond the earth's atmosphere is known as
A. conduction
B. convection
C. radiation
D. absorption
Answer : C

16. Holography is the technique of
A. taking photos of various objects
B. recording and reproducing three dimensional images
C. tracing out planets and stars in the sky
D. transmitting light waves
Answer : B

17. Two tumblers stuck together can be separated by
A. pouring ice cold water into the inner tumbler
B. pouring ice cold water on the outer tumbler
C. pouring hot water into the inner tumbler
D. dipping both the tumblers in hot water
Answer : A

18. In experiments on static electricity the standard method for obtaining small amounts of positive electricity is to rub
A. a glass rod with flannel
B. an abonite rod with flannel
C. a glass rod with silk
D. Any of the above
Answer : C

19. The planet that is known as earth's twin is
A. Mercury
B. Venus
C. Moon
D. Mars
Answer : B

20. Which mirror is used as a rear view mirror in Vehicles?
A. Parabolic
B. Convex
C. Concave
D. Plain
Answer : B

21. In a dynamo
A. mechanical energy is converted to light energy
B. mechanical energy is converted to heat energy
C. mechanical energy is converted to electrical energy
D. electrical energy is converted to mechanical energy
Answer : C

22. Before the invention of geostationary satellites, television stations could not transmit their programmes to far off places because
A. these signals are electromagnetic in nature
B. these are not electromagnetic in nature
C. their wavelength is very large
D. they are not reflected by the ionosphere but pass through it
Answer : D

23. A radio set that uses valves does not start operating immediately when it is switched on whereas a set containing only tranaistors operates immediately. The reason for this is that
A. the valve filaments have low resistance
B. valve-radio sets work at a higher voltage
C. transistor set has a low resistance
D. filaments of the valves cake time to beat up and function
Answer : D

24. The characteristics of a musical note are
A. loudness
B. pitch
C. quality or timbre
D. All the above
Answer : D

25. The light from the star nearest to the sun reaches the earth in
A. 8 minutes
B. 4.3 years
C. 12 seconds
D. 24 hours
Answer : B

26. Lightning is produced when
A. similar charges of electricity rush towards each other and then get repelled
B. clouds strike against impurities in air and the friction burns up these impurities
C. strong opposite charges in different clouds break down the resistance offered by the intervening air
D. water vapour produces electricity in the clouds
Answer : C

27. A hydraulic brake in an automobile uses
A. a fluid to transmit the braking force
B. the force applied by the driver
C. hydrogen gas and not any liquid
D. a vacuum brake
Answer : A

28. The acoustical quality of a room depends on
A. the size and shape of the room
B. the ability of the ceiling, walls and floor to exclude unwanted sound
C. the use of furnishings made of sound absorbing materials
D. All the above
Answer : D

29. A device used in a ship for the purpose of measuring the depth of the sea is
A. an altimeter
B. a fathometer
C. a hydrometer
D. a sonometer
Answer : B

30. The colour of the light which travels through glass with minimum speed is
A. red
B. violet
C. green
D. yellow
Answer : B

31. We always see only one side of the moon because
A. the sun comes in between the earth and moon
B. the moon is stationary
C. the time taken by the moon to rotate on its axis is the same as the time taken by it to revolve round the earth
D. moon revolves round the sun
Answer : C

32. When the earth reaches its perihelion
A. it is nearest to the moon
B. it is nearest to the sun
C. it is nearest to Pluto
D. it is farthest from the sun
Answer : B

33. Alpha particles are
A. electromagnetic radiations
B. helium nuclei
C. negatively charged particles
D. neutral particles
Answer : B

34. Cosmic rays are
A. powerful X-rays falling on the earth from space
B. ultraviolet rays from the sun
C. gamma rays from radioactive minerals
D. very energetic radiation falling upon the earth from outer space consisting chiefly of charged particles
Answer : D

35. In a refrigerator, the refrigerant is
A. Nitrogen
B. Oxygen
C. Chlorine
D. Freon
Answer : D

36. Alternating Current (AC) is more advantageous than direct current because
A. it can be transmitted easily and efficiently
B. Alternating Current (AC) loses the least amount of energy when transmitted at high voltages
C. Alternating Current (AC) voltage can be easily increased or decreased
D. all the above
Answer : D

37. Besides protons, the nucleus of an atom contains
A. electrons
B. neutrons
C. neutrons and electrons
D. electrons, neutrons and other particles
Answer : B

38. One finds it more difficult to walk on ice than on a concrete road because
A. there is more friction on ice than on concrete surface
B. ice is soft and spongy while concrete is hard
C. the friction between ice and the feet is less than that between the concrete and the feet
D. None of them
Answer : C

39. A heavenly body similar in nature to the sun intensely hot glowing mass that produces its energy by thermonuclear reactions is
A. a planet
B. a meteor
C. a star
D. a comet
Answer : C

40. The mirage is a phenomenon
A. generally considered as a desert happening
B. caused by unequal heating of the several layers of the atmosphere above the desert
C. in which the refracted rays take a curved path resulting in total internal refection
D. All the above
Answer : D

41. A device used to measure heights above sea level is known as
A. altimeter
B. anemometer
C. dilatometer
D. potentiometer
Answer : A

42. The radius of curvature of a spherical mirror is
A. equal to half its focal length
B. equal to its focal length
C. twice its focal length
D. not related to its focal length
Answer : C

43. Which part of the eye photographic camera?
A. Lens
B. Iris
C. Retina
D. Eyelid
Answer : D

44. In a vacuum the following three articles are dropped at the same time and from the lame height. Which will reach the ground quicker?
A. a stone
B. a piece of wood
C. a feather
D. all will reach the ground at the same time
Answer : D

45. The motion .of the pendulum of a wall clock is an example of
A. linear motion
B. vibratory motion
C. rotational motion
D. None of the above
Answer : B

46. Pieces of camphor placed on water move about rapidly. This is because of
A. diffusion
B. viscosity
C. surface tension
D. capillarity
Answer : C

47. Raindrops assume a spherical shape because or
A. adhesion
B. surface tension
C. gravitational force
D. atmospheric pressure from all sides
Answer : B

48. Cosmic rays contain
A. protons and electrons
B. alpha particles
C. gamma rays
D. All the above
Answer : D

49. During thunder storm you are travelling in a car. To protect yourself from the lightning you will have to
A. remain in the car
B. get out of the car and lie flat in the ground
C. abandon the car and take shelter under a nearby tree
D. touch the nearest electric pole
Answer : A

50. Of the following types of electromagnetic radiation which has the longest wavelength?
A. ultraviolet rays
B. gamma rays
C. radio waves
D. infrared waves
Answer : C