Photoelectric Effect
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357807 Assertion :
When a certain wavelength of light falls on a soft metal surface, it ejects electrons.
Reason :
Light has wave nature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357808 Statement A :
Photosensitivity of a metal is high if its work function is small
Statement B :
Work function is \(h v_{0}\) where \(v_{0}\) is the threshold frequency.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357809 The work function of a metal

1 Is different for different metals
2 Is the same for all the metals
3 Depends on the frequency of the light
4 Depends on the intensity of the incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357810 When ultraviolet radiation is incident on a surface, no photoelectrons are emitted. If a second beam causes emission of photoelectrons, it may consist of :

1 Radio waves
2 Infrared rays
3 Visible light rays
4 \(X\)-rays
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357807 Assertion :
When a certain wavelength of light falls on a soft metal surface, it ejects electrons.
Reason :
Light has wave nature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357808 Statement A :
Photosensitivity of a metal is high if its work function is small
Statement B :
Work function is \(h v_{0}\) where \(v_{0}\) is the threshold frequency.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357809 The work function of a metal

1 Is different for different metals
2 Is the same for all the metals
3 Depends on the frequency of the light
4 Depends on the intensity of the incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357810 When ultraviolet radiation is incident on a surface, no photoelectrons are emitted. If a second beam causes emission of photoelectrons, it may consist of :

1 Radio waves
2 Infrared rays
3 Visible light rays
4 \(X\)-rays
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357807 Assertion :
When a certain wavelength of light falls on a soft metal surface, it ejects electrons.
Reason :
Light has wave nature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357808 Statement A :
Photosensitivity of a metal is high if its work function is small
Statement B :
Work function is \(h v_{0}\) where \(v_{0}\) is the threshold frequency.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357809 The work function of a metal

1 Is different for different metals
2 Is the same for all the metals
3 Depends on the frequency of the light
4 Depends on the intensity of the incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357810 When ultraviolet radiation is incident on a surface, no photoelectrons are emitted. If a second beam causes emission of photoelectrons, it may consist of :

1 Radio waves
2 Infrared rays
3 Visible light rays
4 \(X\)-rays
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357807 Assertion :
When a certain wavelength of light falls on a soft metal surface, it ejects electrons.
Reason :
Light has wave nature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357808 Statement A :
Photosensitivity of a metal is high if its work function is small
Statement B :
Work function is \(h v_{0}\) where \(v_{0}\) is the threshold frequency.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357809 The work function of a metal

1 Is different for different metals
2 Is the same for all the metals
3 Depends on the frequency of the light
4 Depends on the intensity of the incident light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357810 When ultraviolet radiation is incident on a surface, no photoelectrons are emitted. If a second beam causes emission of photoelectrons, it may consist of :

1 Radio waves
2 Infrared rays
3 Visible light rays
4 \(X\)-rays