Find the frequency of 1 `MeV` photon . Give wavelength of a 1 `KeV` photon is` 1.24 xx 10^(-9) m `

Explanation

To find the frequency of a 1 MeV photon, we can follow these steps:

### Step 1: Understand the relationship between energy, wavelength, and frequency
The energy \( E \) of a photon can be expressed in terms of its wavelength \( \lambda \) using the equation:
\[ E = \frac{hc}{\lambda} \]
where \( h \) is Planck's constant (\( 6.626 \times 10^{-34} \, \text{Js} \)) and \( c \) is the speed of light (\( 3 \times 10^8 \, \text{m/s} \)).
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