The energy of a photon of frequency `4 xx 10^(15)` Hz is ?

Explanation

To find the energy of a photon with a given frequency, we can use the formula:

\[ E = h \nu \]

where:
- \( E \) is the energy of the photon,
- \( h \) is Planck's constant (\( 6.63 \times 10^{-34} \) Joules·s),
- \( \nu \) (nu) is the frequency of the photon.
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