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MODERN PUBLICATION-UNIT TEST -07-EXERCISE
- A beam of electrons is used in an Young's double slit experiment.The s...
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- Electrons with de-Broglie waveelngth lambda fall on the target in an X...
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- Electron volt is a unit of
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- When a proton is accelerated with IV potential difference, then its ki...
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- Unit of Planck constant is :
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- Which one of the following statements about photon is incorrect?
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- A photon behaves as if it had a mass equal to
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- The minimum light intensity that can be perceived by the eye is about ...
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- Photoelectrons are emitted,when
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- When ultraviolet rays are incident on a metal plate,the photoelectric ...
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- If the distance of 100 W lamp is increased from a photo cell,the satur...
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- A photocell is illuminated by a small bright source placed 1 m away .w...
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- Consider light of given intensity and frequency falling on a substance...
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- Einstein's photoelectric equation is expressed as
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- Light of two difference efrequencyies,whose phtothns have energies 1 e...
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- The maximum velocity of an elecron ejected from a photoelectric emitte...
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- When radiation is incident on a photoelectron emitteer,the stopping po...
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- An image of the sun is formed by a lens of focla length 50 cm on a pho...
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- If c is velocity of light ,then momentum of a photon of frequency is
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- The energy of a photon is 3 xx 10^(-19) J.Its momentum is
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