If a photon has velocity \( c \) and frequency \( v \), then which of following represents its w...

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If a photon has velocity \( c \) and frequency \( v \), then which of following represents its wavelength
[AIEEE 2002]
(a) \( \frac{h c}{E} \)
(b) \( \frac{h v}{c} \)
(c) \( \frac{h v}{c^{2}} \)
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