AP-EAMCET SERIES Physics
Photoelectric Effect
12 previous year questions.
Volume: 12 Ques
Yield: Medium
High-Yield Trend
11
2024 1
2019 Chapter Questions 12 MCQs
01
PYQ 2019
medium
physics ID: ap-eamce
In a - type semiconductor the donor level is at above the valence band. To produce one electron, the maximum wavelength of light photon required is (Planck's constant, and speed of light in vacuum, )
1
2
3
4
02
PYQ 2024
medium
physics ID: ap-eamce
Energy required to remove an electron from an aluminium surface is 4.2 eV. If light of wavelength 2000 Å falls on the surface, the velocity of the fastest electron ejected from the surface will be
1
ms
2
ms
3
ms
4
ms
03
PYQ 2024
medium
physics ID: ap-eamce
When a transistor in CE configuration, the resistance connected at the collector circuit and base circuit are 10 and 8 respectively, if the AC current gain , then the voltage amplification is
1
1.5
2
1.75
3
2.0
4
2.25
04
PYQ 2024
medium
physics ID: ap-eamce
Light of wavelength is incident on a sodium surface for which the threshold wavelength of photoelectrons is . The work function of sodium is:
1
2
3
4
05
PYQ 2024
medium
physics ID: ap-eamce
The surface of a metal is first illuminated with a light of wavelength 300 nm and later illuminated by another light of wavelength 500 nm. It is observed that the ratio of maximum velocities of photoelectrons in two cases is 3. The work function of the metal value is close to:
1
2
3
4
06
PYQ 2024
easy
physics ID: ap-eamce
The longest wavelength of light that can initiate photo electric effect in the metal of work function 9 eV is
1
2
3
4
07
PYQ 2024
easy
physics ID: ap-eamce
The maximum wavelength of light which causes photoelectric emission from a photosensitive metal surface is . Two light beams of wavelengths and incident on the metal surface. The ratio of the maximum velocities of the emitted photoelectrons is:
1
2
3
4
08
PYQ 2024
medium
physics ID: ap-eamce
A wire of resistance 0.2 is bent to form a square ABCD of side 10 cm. A similar wire is connected between the corners B and D. If 2 V battery is connected across A and C, the power dissipated is
1
4 W
2
1 W
3
2 W
4
8 W
09
PYQ 2024
medium
physics ID: ap-eamce
What is the equivalent resistance between the points A and B of the network?
1
2
8
3
6
4
10
PYQ 2024
medium
physics ID: ap-eamce
When a metal surface is illuminated by a light of wavelength , the stopping potential is . If the same surface is illuminated by light of wavelength , the stopping potential is , the threshold wavelength is:
1
2
3
4
11
PYQ 2024
medium
physics ID: ap-eamce
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20. If the input signal is 0.01 Volt, calculate the output AC signal.
1
0 V
2
1 V
3
2 V
4
3 V
12
PYQ 2024
medium
physics ID: ap-eamce
A photon incident on a metal of work function 2 eV produced a photoelectron of maximum kinetic energy of 2 eV. The wavelength associated with the photon is:
1
Å
2
Å
3
Å
4
Å