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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 minimum energy required by an electron to eject from metal surface is known as:
Question # 2
Davisson and Germer, in their experiment used:
Question # 3
The unit of work function is
Question # 4
The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:
Question # 5
Davisson and Germer received the Nobel prize for their work on:
Question # 6
The energy of photon of wavelength 620 nm is:
Question # 7
The number of electrons emitted depend upon
Question # 8
Which of the particles, electron, proton and neutron moving with same speed has longest wave length?
Question # 9
Moving photons posses:
Question # 10
G.P Thomson revealed:
Question # 11
De-Broglie received the Nobel prize on his work on:
Question # 12
In a photocell, certain metal emits electrons for :
Question # 13
The energy of photon of energy 1 eV is:
Question # 14
In order to perform experiment, Davisson and Germer used accelerating voltage of:
Question # 15
Compton Effect makes the use of the law of conservation of:
Question # 16
Rest mass energy of electron is:
Question # 17
Photo cells is a device which convert light into:
Question # 18
The photoelectric effect was explained by:
Question # 19
A human eye can detect the electromagnetic radiations of the type:
Question # 20
In Compton effect, it was considered that X-rays consist of:
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MCAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The energy of photon of energy 1 eV is: |
A. 1240 nm
B. 1040 nm
C. 1000 nm
D. 620 nm
|
| 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 | Photo cells are used for : |
A. Security and counting system
B. Automatic door system
C. Automatic street lighting
D. All of these
|
| 4 | Diffraction pattern has also been observed for: |
A. Proton
B. Neutron
C. Hydrogen atom
D. All of them
|
| 5 | The unit Compton wavelength is same as: |
A. Compton wavelength
B. Compton frequency
C. Compton shift
D. Both (a) & (b)
|
| 6 | In photoelectric effect, electrons are emitted with: |
A. Same energy
B. Different energies
C. Both (a) & (b)
D. Intermittent energies
|
| 7 | Davisson and Germer, in their experiment used: |
A. Nickle crystal
B. Lead crystal
C. Graphite crystal
D. Glass
|
| 8 | Photoelectric effect and Compton effect prove the: |
A. Wave nature of light
B. Particle nature of light
C. Dual nature of light
D. Dual nature of light
|
| 9 | A photo cell is based on: |
A. Compton effect
B. Pair production
C. Photo cell
D. All of these
|
| 10 | 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
|
Test Questions