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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
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Question # 1
Compton Effect makes the use of the law of conservation of:
Question # 2
The number of electrons emitted depend upon
Question # 3
In order to perform experiment, Davisson and Germer used accelerating voltage of:
Question # 4
The energy of photon of wavelength 620 nm is:
Question # 5
In a photocell, sodium and potassium emit electrons for:
Question # 6
Moving photons posses:
Question # 7
The unit of work function is
Question # 8
The energy of photon of wavelength 1240 nm is:
Question # 9
Potassium cathode in photocell emits electrons for a light:
Question # 10
The photoelectric effect was explained by:
Question # 11
The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:
Question # 12
A.H Compton studied the scattering of X-rays by loosely bound electrons from a graph target in:
Question # 13
The dimensions of Planck’s constant “h” are same as that of:
Question # 14
Davisson and Germer received the Nobel prize for their work on:
Question # 15
The energy of photon of energy 1 eV is:
Question # 16
A human eye can detect the electromagnetic radiations of the type:
Question # 17
Photo cells are used for :
Question # 18
In photoelectric effect, if we increase the frequency of the incident light then of the electrons increased
Question # 19
The maximum kinetic energy of emitted photoelectrons depends upon:
Question # 20
The maximum energy of the photoelectrons depends upon:
Top Scorers Of MDCAT Physics Chapter 15 Modern Physics MCQ's Test MCQ`s Test
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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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R Rubab Fatima 10 - Nov - 2022 08 Min 34 Sec 11/20
MCAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | In a photocell, sodium and potassium emit electrons for: |
A. Visible light
B. Infrared light
C. Ultraviolet light
D. All of these
|
| 2 | The maximum energy of the photoelectrons depends upon: |
A. Frequency of incident light
B. Intensity of incident light
C. Nature of metal
D. Both (a) & (c)
|
| 3 | In Compton effect, it was considered that X-rays consist of: |
A. Electrons
B. Positrons
C. Photons
D. All of these
|
| 4 | Interference and diffraction confirm: |
A. Particle nature
B. Wave nature
C. Dual nature
D. None of these
|
| 5 | Photo cells is a device which convert light into: |
A. Wave nature
B. Particle nature
C. Particle wave nature
D. Dual nature
|
| 6 | 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
|
| 7 | G.P Thomson revealed: |
A. Particle nature of electron
B. Dual nature of electron
C. Wave nature of electron
D. Electromagnetic nature of electron
|
| 8 | Diffraction pattern has also been observed for: |
A. Proton
B. Neutron
C. Hydrogen atom
D. All of them
|
| 9 | Joule-second is the unit of: |
A. Energy
B. Heat
C. Planck’s constant
D. None of these
|
| 10 | 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
|
Test Questions
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