Photons have the following characteristics: (i) energy of a photon E=hγ (ii) photons travel with the velocity of light (iii) photons are emitted when light of frequency γ is emitted by an atom
A
(i), (ii)
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B
(ii), (iii)
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C
(i), (ii) and (iii)
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D
Only (i)
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Solution
The correct option is C (i), (ii) and (iii) (i), (ii), (iii)
A photon is a particle of light defined as discrete bundles or quantum of electromagnetic energy.
Properties of photon :
Photons always moves with the speed of light.
Photons are electrically neutral
Photons have no mass but they have energy.
E=hv where h is the planks constant.
The energy of each photon is inversely proportional to the wavelength of the associated EM wave.