MDCAT Physics Chapter 14 Electronics Online Test

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  • Chapter NameModern Physics
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MDCAT Physics Chapter 14 Electronics Online Test

  • Total Questions20

  • Time Allowed20

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MDCAT Physics Chapter 14 Electronics Online Test

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Question # 1

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

Question # 2

The energy of photon of wavelength 620 nm is:

Question # 3

In a photocell, certain metal emits electrons for :

Question # 4

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

Question # 5

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

Question # 6

De-Broglie received the Nobel prize in

Question # 7

In photoelectric effect, electrons are emitted:

Question # 8

J.J Thomson finds:

Question # 9

The reverse process of photo-electric effect is called:

Question # 10

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

Question # 11

The minimum energy required by an electron to eject from metal surface is known as:

Question # 12

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

Question # 13

Photo cells is a device which convert light into:

Question # 14

The maximum energy of the photoelectrons can be determined by making the:

Question # 15

The maximum kinetic energy of emitted photoelectrons depends upon:

Question # 16

The energy of photon of energy 1 eV is:

Question # 17

The energy of photon of wavelength 1240 nm is:

Question # 18

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

Question # 19

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

Question # 20

In a photocell, sodium and potassium emit electrons for:

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