VITEEE PYQs for Photoelectric Effect with Solutions: Practice VITEEE Previous Year Questions

Updated 3+ months ago

Photoelectric Effect is an important topic in the Physics section in VITEEE exam. Practising this topic will increase your score overall and make your conceptual grip on VITEEE exam stronger.

This article gives you a full set of VITEEE PYQs for Photoelectric Effect with explanations for effective preparation. Practice of VITEEE Physics PYQs including Photoelectric Effect questions regularly will improve accuracy, speed, and confidence in the VITEEE 2026 exam.

VITEEE PYQs for Photoelectric Effect with Solutions

1.
If the wavelength is brought down from 6000 Å to 4000 Å in a photoelectric experiment then what will happen?
- The work function of the metal will increase
- The threshold frequency will decrease
- No change will take place
- Cut off voltage will increase
View Solution
2.
When a certain metallic surface is illuminated with monochromatic light of wavelength \( \lambda \), the stopping potential for photoelectric current is \( V_0 \). When the same surface is illuminated with a light of wavelength \( 2\lambda \), the stopping potential is \( V_1 \). The threshold wavelength for this surface to photoelectric effect is
- \( \lambda_0 \)
- \( 6\lambda \)
- \( \frac{4\lambda}{3} \)
- \( \frac{3\lambda}{4} \)
View Solution
3.
Silver has a work function of 4.7 eV. When ultraviolet light of wavelength 100 nm is incident on it, a potential of 7.7 V is required to stop the photoelectrons from reaching the collector plate. How much potential will be required to stop photoelectrons when light of wavelength 200 nm is incident on it?
- 154 V
- 235 V
- 385 V
- 1.5 V
View Solution
4.
In a photoelectric effect measurement, the stopping potential for a given metal is found to be \( V_0 \) volt when radiation of wavelength \( \lambda_0 \) is used. If radiation of wavelength \( 2\lambda_0 \) is used with the same metal then the stopping potential (in volt) will be:
- \( \dfrac{V_0}{2} \)
- \( 2V_0 \)
- \( V_0 + \dfrac{hc}{2e\lambda_0} \)
- \( V_0 - \dfrac{hc}{2e\lambda_0} \)
View Solution
5.
Light of wavelength 500 nm is incident on a metal with work function \( 2.28 \, \text{eV} \). The de Broglie wavelength of the emitted electron is:
- \(<2.8 \times 10^{-9} \, \text{m} \)
- \(>2.8 \times 10^{-10} \, \text{m} \)
- \(<5.2 \times 10^{-12} \, \text{m} \)
- \(<2.8 \times 10^{-10} \, \text{m} \)
View Solution
6.
If the distance of 100 W lamp is increased from a photocell, the saturation current in the photocell varies with the distance \( d \) as?
- \( i \propto d^2 \)
- \( i \propto \frac{1}{d^2} \)
- \( i \propto \frac{1}{d} \)
- \( i \propto \frac{1}{d^3} \)
View Solution
7.
The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is: (hc = 1240 eV·nm)
- 3.09 eV
- 1.42 eV
- 1.51 eV
- 1.68 eV
View Solution
8.
Let the energy of an emitted photoelectron be \( E \) and the wavelength of incident light be \( \lambda_0 \). What will be the change in \( E \) if \( \lambda_0 \) is doubled?
- \( E = \frac{E_0}{2} \)
- \( E = E_0 \)
- \( E = 2E_0 \)
- \( E = \frac{E_0}{4} \)
View Solution
9.
Light of wavelength 600 nm is incident on a metal surface with work function 2 eV. The maximum kinetic energy of photoelectrons is:
- 0.07 eV
- 0.7 eV
- 2.07 eV
- 4.14 eV
View Solution
10.
A certain metal when irradiated by light (\( r = 3.2 \times 10^{16} \, \text{Hz} \)) emits photoelectrons with twice kinetic energy as did photoelectrons when the same metal is irradiated by light (\( r = 2.0 \times 10^{16} \, \text{Hz} \)). The \( \nu \) of metal is
- \( 1.2 \times 10^{14} \, \text{Hz} \)
- \( 8 \times 10^{15} \, \text{Hz} \)
- \( 1.2 \times 10^{16} \, \text{Hz} \)
- \( 1.2 \times 10^{14} \, \text{Hz} \)
View Solution
11.
Hologram is based on phenomenon of
- diffraction
- polarisation
- interference
- total internal reflection
View Solution
12.
In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is
- 13V
- 0.5V
- 23V
- 1.8V
View Solution
13.
Suppose a beam of electrons with each electron having energy \( E_0 \) incident on a metal surface kept in an evacuated chamber. Then,
- electrons can be emitted with any energy less than \( E_0 \)
- electrons can be emitted with any energy up to \( E_0 \)
- electrons can be emitted with any energy with a maximum of \( E_0 \)
- electrons can be emitted with any energy with a maximum of \( E_0 - \phi \), where \( \phi \) being work function
View Solution
14.
The ratio of slopes of \( K_{\text{max}} \) vs \( V \) and \( V_0 \) vs \( v \) curves in the photoelectric effect gives
- the ratio of Planck’s constant of electronic charge
- work function
- Planck’s constant
- charge of electron
View Solution
15.
A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 1 it is possible to eject electrons from the same surface by?
- Yellow light of same intensity which is more than I
- Green light of any intensity
- Red light of any intensity
- None of the above
View Solution

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VITEEE PYQs for Photoelectric Effect with Solutions: Practice VITEEE Previous Year Questions

VITEEE PYQs for Photoelectric Effect with Solutions

1.
If the wavelength is brought down from 6000 Å to 4000 Å in a photoelectric experiment then what will happen?

4.
In a photoelectric effect measurement, the stopping potential for a given metal is found to be \( V_0 \) volt when radiation of wavelength \( \lambda_0 \) is used. If radiation of wavelength \( 2\lambda_0 \) is used with the same metal then the stopping potential (in volt) will be:

5.
Light of wavelength 500 nm is incident on a metal with work function \( 2.28 \, \text{eV} \). The de Broglie wavelength of the emitted electron is:

6.
If the distance of 100 W lamp is increased from a photocell, the saturation current in the photocell varies with the distance \( d \) as?

7.
The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is: (hc = 1240 eV·nm)

8.
Let the energy of an emitted photoelectron be \( E \) and the wavelength of incident light be \( \lambda_0 \). What will be the change in \( E \) if \( \lambda_0 \) is doubled?

9.
Light of wavelength 600 nm is incident on a metal surface with work function 2 eV. The maximum kinetic energy of photoelectrons is:

10.
A certain metal when irradiated by light (\( r = 3.2 \times 10^{16} \, \text{Hz} \)) emits photoelectrons with twice kinetic energy as did photoelectrons when the same metal is irradiated by light (\( r = 2.0 \times 10^{16} \, \text{Hz} \)). The \( \nu \) of metal is

11.
Hologram is based on phenomenon of

12.
In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is

13.
Suppose a beam of electrons with each electron having energy \( E_0 \) incident on a metal surface kept in an evacuated chamber. Then,

14.
The ratio of slopes of \( K_{\text{max}} \) vs \( V \) and \( V_0 \) vs \( v \) curves in the photoelectric effect gives

15.
A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 1 it is possible to eject electrons from the same surface by?

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VITEEE PYQs for Photoelectric Effect with Solutions

1.If the wavelength is brought down from 6000 Å to 4000 Å in a photoelectric experiment then what will happen?

4.In a photoelectric effect measurement, the stopping potential for a given metal is found to be \( V_0 \) volt when radiation of wavelength \( \lambda_0 \) is used. If radiation of wavelength \( 2\lambda_0 \) is used with the same metal then the stopping potential (in volt) will be:

5.Light of wavelength 500 nm is incident on a metal with work function \( 2.28 \, \text{eV} \). The de Broglie wavelength of the emitted electron is:

6.If the distance of 100 W lamp is increased from a photocell, the saturation current in the photocell varies with the distance \( d \) as?

7.The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is: (hc = 1240 eV·nm)

8.Let the energy of an emitted photoelectron be \( E \) and the wavelength of incident light be \( \lambda_0 \). What will be the change in \( E \) if \( \lambda_0 \) is doubled?

9.Light of wavelength 600 nm is incident on a metal surface with work function 2 eV. The maximum kinetic energy of photoelectrons is:

10.A certain metal when irradiated by light (\( r = 3.2 \times 10^{16} \, \text{Hz} \)) emits photoelectrons with twice kinetic energy as did photoelectrons when the same metal is irradiated by light (\( r = 2.0 \times 10^{16} \, \text{Hz} \)). The \( \nu \) of metal is

11.Hologram is based on phenomenon of

12.In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is

13.Suppose a beam of electrons with each electron having energy \( E_0 \) incident on a metal surface kept in an evacuated chamber. Then,

14.The ratio of slopes of \( K_{\text{max}} \) vs \( V \) and \( V_0 \) vs \( v \) curves in the photoelectric effect gives

15.A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 1 it is possible to eject electrons from the same surface by?

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1.
If the wavelength is brought down from 6000 Å to 4000 Å in a photoelectric experiment then what will happen?

4.
In a photoelectric effect measurement, the stopping potential for a given metal is found to be \( V_0 \) volt when radiation of wavelength \( \lambda_0 \) is used. If radiation of wavelength \( 2\lambda_0 \) is used with the same metal then the stopping potential (in volt) will be:

5.
Light of wavelength 500 nm is incident on a metal with work function \( 2.28 \, \text{eV} \). The de Broglie wavelength of the emitted electron is:

6.
If the distance of 100 W lamp is increased from a photocell, the saturation current in the photocell varies with the distance \( d \) as?

7.
The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is: (hc = 1240 eV·nm)

8.
Let the energy of an emitted photoelectron be \( E \) and the wavelength of incident light be \( \lambda_0 \). What will be the change in \( E \) if \( \lambda_0 \) is doubled?

9.
Light of wavelength 600 nm is incident on a metal surface with work function 2 eV. The maximum kinetic energy of photoelectrons is:

10.
A certain metal when irradiated by light (\( r = 3.2 \times 10^{16} \, \text{Hz} \)) emits photoelectrons with twice kinetic energy as did photoelectrons when the same metal is irradiated by light (\( r = 2.0 \times 10^{16} \, \text{Hz} \)). The \( \nu \) of metal is

11.
Hologram is based on phenomenon of

12.
In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is

13.
Suppose a beam of electrons with each electron having energy \( E_0 \) incident on a metal surface kept in an evacuated chamber. Then,

14.
The ratio of slopes of \( K_{\text{max}} \) vs \( V \) and \( V_0 \) vs \( v \) curves in the photoelectric effect gives

15.
A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 1 it is possible to eject electrons from the same surface by?