Photoelectric Effect
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357786 The two metals \(A\) and \(B\) are exposed to radiation of wavelength \(350\;nm\). The work functions of metals \(A\) and \(B\) are \(4.8\,eV\) and \(2.2\,eV\). Then choose the correct option.

1 Both metals \(A\) and \(B\) will emit photoelectrons.
2 Metal \(B\) will not emit photo-electrons.
3 Both metals \(A\) and \(B\) will not emit photoelectrons.
4 Metal \(A\) will not emit photo-electrons.
JEE - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357787 Emission of electrons in photoelectric effect is possible, if

1 Metal surface is highly polished
2 The incident light is of sufficiently high intensity
3 The light is incident at right angles to the surface
4 The incident light is of sufficiently low wavelength
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357788 Assertion :
In photoelectric effect, cathode or emitter plate is usually coated with barium oxide.
Reason :
Coating prevents cathode from erosion.

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

357789 If \({c}\) is the velocity of light in free space, the correct statements about photon among the following are:
A. The energy of a photon is \({E=h v}\).
B. The velocity of a photon is \({c}\).
C. The momentum of a photon, \({p=\dfrac{h v}{c}}\).
D. In a photon-electron collision, both total energy and total momentum are conserved.
E. Photon possesses positive charge.
Choose the correct answer from the options given below:

1 A and B only
2 A, B, C and D only
3 A, C and D only
4 A, B, D and E only
NEET - 2024
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357786 The two metals \(A\) and \(B\) are exposed to radiation of wavelength \(350\;nm\). The work functions of metals \(A\) and \(B\) are \(4.8\,eV\) and \(2.2\,eV\). Then choose the correct option.

1 Both metals \(A\) and \(B\) will emit photoelectrons.
2 Metal \(B\) will not emit photo-electrons.
3 Both metals \(A\) and \(B\) will not emit photoelectrons.
4 Metal \(A\) will not emit photo-electrons.
JEE - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357787 Emission of electrons in photoelectric effect is possible, if

1 Metal surface is highly polished
2 The incident light is of sufficiently high intensity
3 The light is incident at right angles to the surface
4 The incident light is of sufficiently low wavelength
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357788 Assertion :
In photoelectric effect, cathode or emitter plate is usually coated with barium oxide.
Reason :
Coating prevents cathode from erosion.

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

357789 If \({c}\) is the velocity of light in free space, the correct statements about photon among the following are:
A. The energy of a photon is \({E=h v}\).
B. The velocity of a photon is \({c}\).
C. The momentum of a photon, \({p=\dfrac{h v}{c}}\).
D. In a photon-electron collision, both total energy and total momentum are conserved.
E. Photon possesses positive charge.
Choose the correct answer from the options given below:

1 A and B only
2 A, B, C and D only
3 A, C and D only
4 A, B, D and E only
NEET - 2024
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357786 The two metals \(A\) and \(B\) are exposed to radiation of wavelength \(350\;nm\). The work functions of metals \(A\) and \(B\) are \(4.8\,eV\) and \(2.2\,eV\). Then choose the correct option.

1 Both metals \(A\) and \(B\) will emit photoelectrons.
2 Metal \(B\) will not emit photo-electrons.
3 Both metals \(A\) and \(B\) will not emit photoelectrons.
4 Metal \(A\) will not emit photo-electrons.
JEE - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357787 Emission of electrons in photoelectric effect is possible, if

1 Metal surface is highly polished
2 The incident light is of sufficiently high intensity
3 The light is incident at right angles to the surface
4 The incident light is of sufficiently low wavelength
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357788 Assertion :
In photoelectric effect, cathode or emitter plate is usually coated with barium oxide.
Reason :
Coating prevents cathode from erosion.

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

357789 If \({c}\) is the velocity of light in free space, the correct statements about photon among the following are:
A. The energy of a photon is \({E=h v}\).
B. The velocity of a photon is \({c}\).
C. The momentum of a photon, \({p=\dfrac{h v}{c}}\).
D. In a photon-electron collision, both total energy and total momentum are conserved.
E. Photon possesses positive charge.
Choose the correct answer from the options given below:

1 A and B only
2 A, B, C and D only
3 A, C and D only
4 A, B, D and E only
NEET - 2024
For More Updates join with Us
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357786 The two metals \(A\) and \(B\) are exposed to radiation of wavelength \(350\;nm\). The work functions of metals \(A\) and \(B\) are \(4.8\,eV\) and \(2.2\,eV\). Then choose the correct option.

1 Both metals \(A\) and \(B\) will emit photoelectrons.
2 Metal \(B\) will not emit photo-electrons.
3 Both metals \(A\) and \(B\) will not emit photoelectrons.
4 Metal \(A\) will not emit photo-electrons.
JEE - 2023
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357787 Emission of electrons in photoelectric effect is possible, if

1 Metal surface is highly polished
2 The incident light is of sufficiently high intensity
3 The light is incident at right angles to the surface
4 The incident light is of sufficiently low wavelength
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357788 Assertion :
In photoelectric effect, cathode or emitter plate is usually coated with barium oxide.
Reason :
Coating prevents cathode from erosion.

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

357789 If \({c}\) is the velocity of light in free space, the correct statements about photon among the following are:
A. The energy of a photon is \({E=h v}\).
B. The velocity of a photon is \({c}\).
C. The momentum of a photon, \({p=\dfrac{h v}{c}}\).
D. In a photon-electron collision, both total energy and total momentum are conserved.
E. Photon possesses positive charge.
Choose the correct answer from the options given below:

1 A and B only
2 A, B, C and D only
3 A, C and D only
4 A, B, D and E only
NEET - 2024