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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
A human eye can detect the electromagnetic radiations of the type:
Question # 2
A human eye can detect the electromagnetic radiations of the type:
Question # 3
Which of the particles, electron, proton and neutron moving with same speed has longest wave length?
Question # 4
The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:
Question # 5
The unit of work function is
Question # 6
The energy of photon of wavelength 620 nm is:
Question # 7
Photo cells are used for :
Question # 8
The maximum energy of the photoelectrons can be determined by making the:
Question # 9
Rest mass energy of electron is:
Question # 10
The unit Compton wavelength is same as:
Question # 11
Photoelectric effect and Compton effect prove the:
Question # 12
Moving photons posses:
Question # 13
In order to perform experiment, Davisson and Germer used accelerating voltage of:
Question # 14
In a photocell, sodium and potassium emit electrons for:
Question # 15
In photoelectric effect, electrons are emitted with:
Question # 16
Potassium cathode in photocell emits electrons for a light:
Question # 17
De-Broglie received the Nobel prize on his work on:
Question # 18
Photo cells is a device which convert light into:
Question # 19
Interference and diffraction confirm:
Question # 20
Davisson and Germer, in their experiment used:
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 -
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 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
|
| 2 | Interference and diffraction confirm: |
A. Particle nature
B. Wave nature
C. Dual nature
D. None of these
|
| 3 | In order to increase the K.E of ejected photo electrons, there should be an increase in: |
A. Intensity of radiation
B. NoneI
C. Frequency of radiation
D. Both (b) & (c)
|
| 4 | Diffraction pattern has also been observed for: |
A. Proton
B. Neutron
C. Hydrogen atom
D. All of them
|
| 5 | Potassium cathode in photocell emits electrons for a light: |
A. Visible
B. Infrared
C. Ultraviolet
D. X-rays
|
| 6 | The photoelectric effect was explained by: |
A. Einstein
B. Davison
C. Hertz
D. Planck
|
| 7 | In order to perform experiment, Davisson and Germer used accelerating voltage of: |
A. 54V
B. 120V
C. 220V
D. 400V
|
| 8 | 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
|
| 9 | 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
|
| 10 | Photo cells is a device which convert light into: |
A. Wave nature
B. Particle nature
C. Particle wave nature
D. Dual nature
|
Test Questions
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