Dual Nature of Radiation · Physics · WB JEE

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MCQ (Single Correct Answer)

WB JEE 2024
A beam of light of wavelength $$\lambda$$ falls on a metal having work function $$\phi$$ placed in a magnetic field B. The most energetic electrons, p...
WB JEE 2017
When light of frequency v1 is incident on a metal with work function W (where hv1 > W), then photocurrent falls to zero at a stopping potential of ...

MCQ (More than One Correct Answer)

WB JEE 2024
Monochromatic light of wavelength $$\lambda=4770 \mathop A\limits^o $$ is incident separately on the surfaces of four different metals A, B, C and D. ...
WB JEE 2021
Electric field component of an EM radiation varies with time as E = a (cos$$\omega$$0t + sin$$\omega$$t cos$$\omega$$0t), where a is a constant and $$...
WB JEE 2020
A point source of light is used in an experiment of photoelectric effects. If the distance between the source and the photoelectric surface is doubled...
WB JEE 2019
Electrons are emitted with kinetic energy T from a metal plate by an irradiation of light of intensity J and frequency v. Then, which of the following...
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