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Rutherford's Set up and Predictions

Kinetic mass ...

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Kinetic mass of photon?

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Q. The formula of kinetic mass of photon is? Where h is Planck's constant, v is frequency of the photon and c is its speed.

Q. The formula for kinetic mass of photon is:
where

h

is Planck's constant and

v, λ, c

are frequency, wavelength and speed of photon respectively.

Q. A free nucleus of mass

24 a m u

, intially at rest emits a gamma photon. The energy of the photon is

7 M e V

. The kinetic energy of recoiling nucleus is approximately equal to [Take;

1 a m u = 9.31 M e V

]

Q. A photon creates a pair of electron-positron with equal kinetic energy. Let kinetic energy of each particle is 0.29 MeV. Then what should be energy of the photon

γ

ray photon produces an electron positron pair. If the rest mass energy of electron is

0.51 M e v

and the total kinetic energy of electron - positron pair is

0.78 M e V

then the energy of

γ

- ray photon is

M e v

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