MDCAT Physics Chapter 11 Dawn of modern Physics Online Test

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  • Chapter NameModern Physics
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MDCAT Physics Chapter 11 Dawn of modern Physics Online Test

  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 11 Dawn of modern Physics Online Test

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Question # 1

A photo cell is based on:

Question # 2

Rest mass energy of electron is:

Question # 3

The maximum energy of the photoelectrons depends upon:

Question # 4

The unit of work function is

Question # 5

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

Question # 6

Photo cells are used for :

Question # 7

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

Question # 8

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

Question # 9

The maximum kinetic energy of emitted photoelectrons depends upon:

Question # 10

De-Broglie received the Nobel prize on his work on:

Question # 11

The reverse process of photo-electric effect is called:

Question # 12

Joule-second is the unit of:

Question # 13

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

Question # 14

Moving photons posses:

Question # 15

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

Question # 16

In photoelectric effect, electrons are emitted:

Question # 17

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

Question # 18

Interference and diffraction confirm:

Question # 19

In a photocell, sodium and potassium emit electrons for:

Question # 20

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

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