Particle Nature of Light
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357579 If m is the mass of an electron and c is the speed of light the ratio of the wavelengths of photon of energy E to that of the electron of the same energy:

1 c2mE
2 2mE
3 2mcE
4 mE
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357580 Assertion :
A photon has no rest mass, yet it carries definite momentum.
Reason :
Momentum of photon is due to its energy and hence its equivalent mass.

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

357581 n ' photons of wavelength ' λ ' are absorbed by a black body of mass ' m '. The momentum gained by the body is

1 hmλ
2 mnhλ
3 nhmλ
4 nhλ
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357582 Assertion :
An electron microscope is based on de Broglie hypothesis.
Reason :
A beam of electrons behaves as a wave which can be converged by electric and magnetic lenses.

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

357579 If m is the mass of an electron and c is the speed of light the ratio of the wavelengths of photon of energy E to that of the electron of the same energy:

1 c2mE
2 2mE
3 2mcE
4 mE
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357580 Assertion :
A photon has no rest mass, yet it carries definite momentum.
Reason :
Momentum of photon is due to its energy and hence its equivalent mass.

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

357581 n ' photons of wavelength ' λ ' are absorbed by a black body of mass ' m '. The momentum gained by the body is

1 hmλ
2 mnhλ
3 nhmλ
4 nhλ
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357582 Assertion :
An electron microscope is based on de Broglie hypothesis.
Reason :
A beam of electrons behaves as a wave which can be converged by electric and magnetic lenses.

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

357579 If m is the mass of an electron and c is the speed of light the ratio of the wavelengths of photon of energy E to that of the electron of the same energy:

1 c2mE
2 2mE
3 2mcE
4 mE
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357580 Assertion :
A photon has no rest mass, yet it carries definite momentum.
Reason :
Momentum of photon is due to its energy and hence its equivalent mass.

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

357581 n ' photons of wavelength ' λ ' are absorbed by a black body of mass ' m '. The momentum gained by the body is

1 hmλ
2 mnhλ
3 nhmλ
4 nhλ
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357582 Assertion :
An electron microscope is based on de Broglie hypothesis.
Reason :
A beam of electrons behaves as a wave which can be converged by electric and magnetic lenses.

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

357579 If m is the mass of an electron and c is the speed of light the ratio of the wavelengths of photon of energy E to that of the electron of the same energy:

1 c2mE
2 2mE
3 2mcE
4 mE
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357580 Assertion :
A photon has no rest mass, yet it carries definite momentum.
Reason :
Momentum of photon is due to its energy and hence its equivalent mass.

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

357581 n ' photons of wavelength ' λ ' are absorbed by a black body of mass ' m '. The momentum gained by the body is

1 hmλ
2 mnhλ
3 nhmλ
4 nhλ
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357582 Assertion :
An electron microscope is based on de Broglie hypothesis.
Reason :
A beam of electrons behaves as a wave which can be converged by electric and magnetic lenses.

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.