MDCAT Physics Chapter 15 MCQ Test With Answer for (Modern Physics)

MCQ's Test For MDCAT Physics Chapter 15 Modern Physics MCQ's Test

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MDCAT Physics Chapter 15 Modern Physics MCQ's Test

00:00
Question # 1

Interference and diffraction confirm:

Question # 2

A.H Compton studied the scattering of X-rays by loosely bound electrons from a graph target in:

Question # 3

Compton Effect makes the use of the law of conservation of:

Question # 4

The energy of photon of wavelength 620 nm is:

Question # 5

The energy of photon of energy 1 eV is:

Question # 6

Interference and diffraction of light confirms its:

Question # 7

The maximum energy of the photoelectrons depends upon:

Question # 8

In photoelectric effect, electrons are emitted with:

Question # 9

A human eye can detect the electromagnetic radiations of the type:

Question # 10

G.P Thomson revealed:

Question # 11

The photoelectric effect was explained by:

Question # 12

Moving photons posses:

Question # 13

Davisson and Germer, in their experiment used:

Question # 14

In order to increase the K.E of ejected photo electrons, there should be an increase in:

Question # 15

The dimensions of Planck’s constant “h” are same as that of:

Question # 16

A human eye can detect the electromagnetic radiations of the type:

Question # 17

Photoelectric effect and Compton effect prove the:

Question # 18

In order to perform experiment, Davisson and Germer used accelerating voltage of:

Question # 19

Diffraction pattern has also been observed for:

Question # 20

The reverse process of photo-electric effect is called:

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MCAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Compton Effect makes the use of the law of conservation of:
A. Energy
B. Momentum
C. Charge
D. Both (a) & (b)
2 The number of electrons emitted depend upon
A. Colour of target surface
B. Shape of surface
C. Frequency of incident light
D. Intensity of incident light
3 De-Broglie received the Nobel prize in
A. 1929
B. 1937
C. 1928
D. 1924
4 G.P Thomson revealed:
A. Particle nature of electron
B. Dual nature of electron
C. Wave nature of electron
D. Electromagnetic nature of electron
5 The energy of photon of wavelength 1240 nm is:
A. 0.5 eV
B. 1.0 eV
C. 1.5 eV
D. 2.0 eV
6 The maximum energy of the photoelectrons depends upon:
A. Frequency of incident light
B. Intensity of incident light
C. Nature of metal
D. Both (a) & (c)
7 The reverse process of photo-electric effect is called:
A. Pair production
B. Compton effect
C. Annihilation of matter
D. X-rays
8 Photoelectric effect and Compton effect prove the:
A. Wave nature of light
B. Particle nature of light
C. Dual nature of light
D. Dual nature of light
9 In a photocell, cesium coated oxidized silver emits electrons for :
A. Visible light
B. Infrared light
C. Ultraviolet light
D. All of these
10 The maximum kinetic energy of emitted photoelectrons depends upon:
A. The intensity of incident light
B. Frequency of the incident light
C. Temperature of the surface
D. All of above

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