MDCAT Physics Chapter 15 Modern Physics Online Test

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  • Chapter NameModern Physics
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MDCAT Physics Chapter 15 Modern Physics Online Test

  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 15 Modern Physics Online Test

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Question # 1

A photo cell is based on:

Question # 2

The energy of photon of wavelength 1240 nm is:

Question # 3

The photoelectric effect was explained by:

Question # 4

Potassium cathode in photocell emits electrons for a light:

Question # 5

Davisson and Germer, in their experiment used:

Question # 6

The unit Compton wavelength is same as:

Question # 7

Diffraction pattern has also been observed for:

Question # 8

The unit of work function is

Question # 9

The number of electrons emitted depend upon

Question # 10

There is a certain frequency below which no electrons are emitted from the metal surface, this frequency is known as:

Question # 11

In a photocell, cesium coated oxidized silver emits electrons for :

Question # 12

The energy of photon of wavelength 620 nm is:

Question # 13

The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:

Question # 14

Photoelectric effect and Compton effect prove the:

Question # 15

The maximum energy of the photoelectrons depends upon:

Question # 16

Rest mass energy of electron is:

Question # 17

In photoelectric effect, if we increase the frequency of the incident light then of the electrons increased

Question # 18

Which of the particles, electron, proton and neutron moving with same speed has longest wave length?

Question # 19

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

Question # 20

Moving photons posses:

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