Physics Quiz Set 07

Question No.1

The antiparticle of the electron is called_____________

1. Positron
2. neutrino
3. meson
4. Antineutrino

Select Answer

Correct Answer: ( A )  

Question No.2

Who was the inventor of neutrino?

1. Pauli
2. Fermi
3. Anderson
4. Yukawa

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Correct Answer: ( A )  

Question No.3

The mesons are __________

1. Positively charged particles
2. Negatively charged particles
3. Neutral
4. All of these

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Correct Answer: ( D )  

Question No.4

If three identical resistors each of resistance R are connected in parallel ,then the equivalent resistance of the three resistors will be________

1. 3/R
2. R/3
3. 3R
4. R³

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Correct Answer: ( B )  

Question No.5

Microwave oven consumes less power due to_____________

1. Short wavelength of radiation
2. Large frequency as well as wavelength of radiation
3. Small frequency of radiation
4. Small frequency as well as wavelength of radiation

Select Answer

Correct Answer: ( C )  

Question No.6

The disintegration process of a heavy nucleus into two lighter nuclei is called___________

1. Nuclear fusion
2. Nuclear fission
3. Radioactive disintegration
4. Mass loss

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Correct Answer: ( B )  

Question No.7

The formation of a heavy nucleus by the ombinaiton of two lighter nuclei is_________

1. Photo electric effect
2. Chemical reaction
3. nuclear fission
4. Nuclear fusion

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Correct Answer: ( D )  

Question No.8

Atom bomb is based upon the principle of

1. Nuclear fusion
2. Nuclear fission
3. Both of these
4. None of these

Select Answer

Correct Answer: ( B )  

Question No.9

Hydrogen bomb is based upon the principle of________

1. Nuclear fusion
2. Nuclear fission
3. Photo electric effect
4. Tyndall effect

Select Answer

Correct Answer: ( A )  

Question No.10

Which types of waves are utilized in the night visionary equipment?

1. Radio wave
2. Micro wave
3. Infrared wave
4. All of these

Select Answer

Correct Answer: ( C )  

Question No.11

A semiconductor has_____________

1. Negative temperature coefficient
2. Positive temperature coefficient
3. Both positive or negative temperature coefficient
4. None of these

Select Answer

Correct Answer: ( A )  

Question No.12

Which one of the following is the purest form of semiconductor?

1. Intrinsic
2. Extrinsic
3. Both of these
4. None of these

Select Answer

Correct Answer: ( A )  

Question No.13

In the P type semiconductor the current mainly flows due to_________

1. Electrons
2. Holes
3. Both of these
4. None of these

Select Answer

Correct Answer: ( B )  

Question No.14

A ray of light passes from a medium A to another medium B. No refraction of light occurs if the ray of light hits the boundary of medium B at an angle of_________

1. 0°
2. 45°
3. 60°
4. 90°

Select Answer

Correct Answer: ( D )  

Question No.15

A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light_______

1. Is refracted towards the normal
2. Is refracted away from the normal
3. Is reflected along the same path
4. Does not get refracted

Select Answer

Correct Answer: ( D )  

Question No.16

In n-type semiconductor the current mainly flows due to____________

1. Holes
2. Electrons
3. Both of these
4. None of these

Select Answer

Correct Answer: ( B )  

Question No.17

Atomic pile is used in the___________

1. Production of nuclear fission
2. Regulation of nuclear fission
3. Regulation of thermonuclear fusion
4. Atomic acceleration

Select Answer

Correct Answer: ( B )  

Question No.18

The device through which the intensity of the sun rays is measure __________________

1. Astrometer
2. Chresograph
3. Barometer
4. Actiometer

Select Answer

Correct Answer: ( D )  

Question No.19

The end element of every natural radioactive element is____________

1. Bismuth
2. Hydrogen
3. Carbon
4. None of these

Select Answer

Correct Answer: ( C )  

Question No.20

The ratio of the velocities of X-rays and γ-rays is__________

1. < 1
2. >1
3. 1
4. None of these

Select Answer

Correct Answer: ( C )  

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