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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
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Total Questions20
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Time Allowed20
MDCAT Physics Chapter 15 Modern Physics MCQ's Test
00:00
Question # 1
J.J Thomson finds:
Question # 2
The maximum kinetic energy of emitted photoelectrons depends upon:
Question # 3
The maximum energy of the photoelectrons can be determined by making the:
Question # 4
Davisson and Germer received the Nobel prize for their work on:
Question # 5
Potassium cathode in photocell emits electrons for a light:
Question # 6
In photoelectric effect, if we increase the frequency of the incident light then of the electrons increased
Question # 7
In a photocell, cesium coated oxidized silver emits electrons for :
Question # 8
The unit of work function is
Question # 9
Rest mass energy of electron is:
Question # 10
Interference and diffraction confirm:
Question # 11
In order to perform experiment, Davisson and Germer used accelerating voltage of:
Question # 12
A photo cell is based on:
Question # 13
G.P Thomson revealed:
Question # 14
Compton Effect makes the use of the law of conservation of:
Question # 15
Moving photons posses:
Question # 16
The maximum energy of the photoelectrons depends upon:
Question # 17
The energy of photon of wavelength 620 nm is:
Question # 18
Photo cells is a device which convert light into:
Question # 19
The number of electrons emitted depend upon
Question # 20
Photo cells are used for :
Top Scorers Of MDCAT Physics Chapter 15 Modern Physics MCQ's Test MCQ`s Test
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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 -
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MCAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | Which of the particles, electron, proton and neutron moving with same speed has longest wave length? |
A. Electron
B. Proton
C. Neutron
D. All have same
|
| 3 | In order to perform experiment, Davisson and Germer used accelerating voltage of: |
A. 54V
B. 120V
C. 220V
D. 400V
|
| 4 | In photoelectric effect, if we increase the frequency of the incident light then of the electrons increased |
A. Number
B. K.E
C. P.E
D. Frequency
|
| 5 | J.J Thomson finds: |
A. Particle nature of the electron
B. Dual nature of electron
C. Wave nature of electron
D. Electromagnetic nature of electron
|
| 6 | 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
|
| 7 | The energy of photon of energy 1 eV is: |
A. 1240 nm
B. 1040 nm
C. 1000 nm
D. 620 nm
|
| 8 | Potassium cathode in photocell emits electrons for a light: |
A. Visible
B. Infrared
C. Ultraviolet
D. X-rays
|
| 9 | There is a certain frequency below which no electrons are emitted from the metal surface, this frequency is known as: |
A. Critical frequency
B. Threshold frequency
C. Maximum frequency
D. Minimum frequency
|
| 10 | The energy of photon of wavelength 620 nm is: |
A. 0.5 eV
B. 1.0 eV
C. 1.5 eV
D. 2.0 eV
|
Test Questions
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