In a photo cell, the photo-electrons emission takes place
In a photo cell, the photo-electrons emission takes place
- A
After $10^{-1}$sec on incident of light rays
- B
After $10^{-3}$sec on incident of light rays
- C
After $10^{-6}$sec on incident of light rays
- D
After $10^{-8}$sec on incident of light rays
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The momentum of a photon in an $X-$ ray beam of ${10^{ - 10}}$ metre wavelength is
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If a photon has velocity $c$ and frequency $\nu$, then which of following represents its wavelength
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- [AIPMT 1996]
The momentum of a photon of energy $1\,\, MeV$ in $kg \,\,m/s$ will be
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When light falls on a metal surface, the maximum kinetic energy of the emitted photo-electrons depends upon
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