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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
The unit Compton wavelength is same as:
Question # 2
In a photocell, cesium coated oxidized silver emits electrons for :
Question # 3
The dimensions of Planck’s constant “h” are same as that of:
Question # 4
The unit of work function is
Question # 5
De-Broglie received the Nobel prize in
Question # 6
Rest mass energy of electron is:
Question # 7
In a photocell, certain metal emits electrons for :
Question # 8
The energy of photon of energy 1 eV is:
Question # 9
Interference and diffraction of light confirms its:
Question # 10
In order to increase the K.E of ejected photo electrons, there should be an increase in:
Question # 11
The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:
Question # 12
The maximum kinetic energy of emitted photoelectrons depends upon:
Question # 13
The maximum kinetic energy of emitted photoelectrons depends upon:
Question # 14
G.P Thomson revealed:
Question # 15
The photoelectric effect was explained by:
Question # 16
A photo cell is based on:
Question # 17
In photoelectric effect, electrons are emitted with:
Question # 18
In order to perform experiment, Davisson and Germer used accelerating voltage of:
Question # 19
The energy of photon of wavelength 620 nm is:
Question # 20
The minimum energy required by an electron to eject from metal surface is known as:
Top Scorers Of MDCAT Physics Chapter 15 Modern Physics MCQ's Test MCQ`s Test
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MCAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | Interference and diffraction confirm: |
A. Particle nature
B. Wave nature
C. Dual nature
D. None of these
|
| 3 | The energy of photon of energy 1 eV is: |
A. 1240 nm
B. 1040 nm
C. 1000 nm
D. 620 nm
|
| 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 | In order to perform experiment, Davisson and Germer used accelerating voltage of: |
A. 54V
B. 120V
C. 220V
D. 400V
|
| 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 maximum kinetic energy of emitted photoelectrons depends upon: |
A. The intensity of incident light
B. Frequency of the incident light
C. Temperature of the surface
D. All of above
|
| 8 | In photoelectric effect, electrons are emitted with: |
A. Same energy
B. Different energies
C. Both (a) & (b)
D. Intermittent energies
|
| 9 | The unit Compton wavelength is same as: |
A. Compton wavelength
B. Compton frequency
C. Compton shift
D. Both (a) & (b)
|
| 10 | De-Broglie received the Nobel prize in |
A. 1929
B. 1937
C. 1928
D. 1924
|
Test Questions
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