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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 photoelectric effect was explained by:
Question # 2
Interference and diffraction of light confirms its:
Question # 3
Compton Effect makes the use of the law of conservation of:
Question # 4
De-Broglie received the Nobel prize in
Question # 5
In order to perform experiment, Davisson and Germer used accelerating voltage of:
Question # 6
Rest mass energy of electron is:
Question # 7
The minimum energy required by an electron to eject from metal surface is known as:
Question # 8
Potassium cathode in photocell emits electrons for a light:
Question # 9
The energy of photon of wavelength 620 nm is:
Question # 10
The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is:
Question # 11
A human eye can detect the electromagnetic radiations of the type:
Question # 12
The dimensions of Planck’s constant “h” are same as that of:
Question # 13
In photoelectric effect, electrons are emitted with:
Question # 14
The energy of photon of energy 1 eV is:
Question # 15
There is a certain frequency below which no electrons are emitted from the metal surface, this frequency is known as:
Question # 16
The maximum kinetic energy of emitted photoelectrons depends upon:
Question # 17
The number of electrons emitted depend upon
Question # 18
Diffraction pattern has also been observed for:
Question # 19
In Compton effect, it was considered that X-rays consist of:
Question # 20
Which of the particles, electron, proton and neutron moving with same speed has longest wave length?
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 | In a photocell, sodium and potassium emit electrons for: |
A. Visible light
B. Infrared light
C. Ultraviolet light
D. All of these
|
| 2 | Photo cells is a device which convert light into: |
A. Wave nature
B. Particle nature
C. Particle wave nature
D. Dual nature
|
| 3 | Photo cells are used for : |
A. Security and counting system
B. Automatic door system
C. Automatic street lighting
D. All of these
|
| 4 | In order to perform experiment, Davisson and Germer used accelerating voltage of: |
A. 54V
B. 120V
C. 220V
D. 400V
|
| 5 | In a photocell, certain metal emits electrons for : |
A. Visible light
B. Infrared light
C. Ultraviolet light
D. All of these
|
| 6 | The unit of work function is |
A. eV
B. Volt
C. Farad
D. Herdz
|
| 7 | 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)
|
| 8 | Joule-second is the unit of: |
A. Energy
B. Heat
C. Planck’s constant
D. None of these
|
| 9 | 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
|
| 10 | 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
|
Test Questions
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