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12th CBSE
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A particle is dropped from a height H. The de Broglie wavelength of the particle as a function of height is proportional to

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Important Questions on Dual Nature of Radiation and Matter

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12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.2
The wavelength of a photon needed to remove a proton from a nucleus which is bound to the nucleus with 1 MeV energy is nearly
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12th CBSE
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NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.3
Consider a beam of electrons (each electron with energy Eo) incident on a metal surface kept on an evacuated chamber. Then
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12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.4

Suppose the voltage applied to A is increased. The diffracted beam will have the maximum at a value of θ that

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MEDIUM
12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.5
A proton, a neutron, an electron and an α-particle have same energy. Then their de Broglie wavelengths compare as
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12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.6
An electron is moving with an initial velocity v=voi^ and is in a magnetic field B=Boj^. Then it's de Broglie wavelength
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12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.7
An electron (mass m) with an initial velocity V→=v0i ^ , (v0>0) is in an electric field E→=-E0i^ (E0=constant >0).It's de Broglie wavelength at time t is given by
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12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.8
An electron (mass m) with an initial velocity v=v0i^ is in an electric field E=E0j^. If, λ0=hmv0, it's de-Borglie wavelength at time t is given by
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12th CBSE
IMPORTANT
NCERT Exemplar Physics - Class 12>Chapter 11 - Dual Nature of Radiation and Matter>MCQ>Q 11.9
Relativistic corrections become necessary when the expression for the kinetic energy 12mv2, becomes comparable with mc2, where m is the mass of the particle. At what de Broglie wavelength will relativistic corrections become important for an electron?