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

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

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

  • Total Questions20

  • Time Allowed20

Start Test Download PDF

MDCAT Physics Chapter 15 Modern Physics MCQ's Test

00:00
Question # 1

The unit of work function is

Question # 2

Davisson and Germer received the Nobel prize for their work on:

Question # 3

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

Question # 4

In photoelectric effect, electrons are emitted:

Question # 5

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

Question # 6

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

Question # 7

The energy of photon of energy 1 eV is:

Question # 8

Rest mass energy of electron is:

Question # 9

Interference and diffraction confirm:

Question # 10

Potassium cathode in photocell emits electrons for a light:

Question # 11

A photo cell is based on:

Question # 12

In photoelectric effect, electrons are emitted with:

Question # 13

The maximum kinetic energy of emitted photoelectrons depends upon:

Question # 14

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

Question # 15

The unit Compton wavelength is same as:

Question # 16

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

Question # 17

De-Broglie received the Nobel prize in

Question # 18

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

Question # 19

In a photocell, sodium and potassium emit electrons for:

Question # 20

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

Submit

Prepare Complete Set Wise MDCAT Physics Chapter 15 Modern Physics MCQ's Test MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of MDCAT Physics Chapter 15 Modern Physics MCQ's Test MCQ`s Test

  • M
    Minahil Fatima 03 - May - 2023 00 Min 02 Sec 20/20
  • A
    ammara habib 10 - Jul - 2023 00 Min 07 Sec 19/20
  • D
    Dania 07 - Jan - 2023 08 Min 39 Sec 18/20
  • R
    Rose Lily 28 - May - 2023 04 Min 12 Sec 17/20
  • A
    Afifa Butt 21 - Mar - 2023 05 Min 26 Sec 15/20
  • N
    Nemo Remo 18 - Feb - 2023 05 Min 59 Sec 15/20
  • M
    Meer Sadeed 23 - Aug - 2023 10 Min 50 Sec 15/20
  • M
    Mehwish Abdul Sattar 25 - May - 2023 05 Min 09 Sec 14/20
  • B
    Bader Rasool 13 - Jun - 2023 05 Min 44 Sec 14/20
  • H
    hamza abid 04 - Sep - 2023 10 Min 50 Sec 14/20
  • S
    Shabana khan 17 - Apr - 2023 04 Min 42 Sec 12/20
  • S
    Sham ali 15 - Mar - 2023 05 Min 59 Sec 12/20
  • N
    nav wali 02 - Nov - 2022 04 Min 32 Sec 11/20
  • M
    Muhammad Hamza 01 - Jul - 2023 04 Min 44 Sec 11/20
  • R
    Rubab Fatima 10 - Nov - 2022 08 Min 34 Sec 11/20

MCAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The minimum energy required by an electron to eject from metal surface is known as:
A. Photo energy
B. Critical energy
C. Threshold energy
D. Work function
2 A human eye can detect the electromagnetic radiations of the type:
A. Infrared radiations
B. For- infrared radiations
C. X-rays radiations
D. Red radiations
3 A.H Compton studied the scattering of X-rays by loosely bound electrons from a graph target in:
A. 1905
B. 1911
C. 19251
D. 1923
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 Photo cells are used for :
A. Security and counting system
B. Automatic door system
C. Automatic street lighting
D. All of these
6 The photoelectric effect was explained by:
A. Einstein
B. Davison
C. Hertz
D. Planck
7 Davisson and Germer received the Nobel prize for their work on:
A. Wave nature of particle
B. Corpuscular nature of wave
C. Dual nature of particle
D. All of them
8 The maximum kinetic energy of emitted photoelectrons depends upon:
A. The intensity of incident light
B. Frequency of incident light
C. Metal surface
D. Both frequency of incident light and metal surface
9 The energy of photon of energy 1 eV is:
A. 1240 nm
B. 1040 nm
C. 1000 nm
D. 620 nm
10 In a photocell, sodium and potassium emit electrons for:
A. Visible light
B. Infrared light
C. Ultraviolet light
D. All of these

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!