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.
Explanation:
Photon behaves like particle in photoelectric effect, but is electromagnetic wave in light. So correct option is (2).
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.
Explanation:
Less work function means less energy is required for ejecting out the electrons. Option (3) is correct.
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
Explanation:
Conceptual Question
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 :
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.
Explanation:
Photon behaves like particle in photoelectric effect, but is electromagnetic wave in light. So correct option is (2).
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.
Explanation:
Less work function means less energy is required for ejecting out the electrons. Option (3) is correct.
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
Explanation:
Conceptual Question
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 :
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.
Explanation:
Photon behaves like particle in photoelectric effect, but is electromagnetic wave in light. So correct option is (2).
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.
Explanation:
Less work function means less energy is required for ejecting out the electrons. Option (3) is correct.
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
Explanation:
Conceptual Question
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 :
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.
Explanation:
Photon behaves like particle in photoelectric effect, but is electromagnetic wave in light. So correct option is (2).
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.
Explanation:
Less work function means less energy is required for ejecting out the electrons. Option (3) is correct.
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
Explanation:
Conceptual Question
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 :