Rankers Physics

Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

If a photon has velocity c and frequency $\nu$, then which of the following represents its wavelength? (1996)
$\frac{h\nu}{c^2}$
$h\nu$
$\frac{hc}{E}$
$\frac{h\nu}{c}$

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Photoelectric Effects and deBroglie Equation. Understanding the underlying formula is key to arriving at the correct answer below:

The energy of a photon is $E = \frac{hc}{\lambda}$. Rearranging for wavelength gives $\lambda = \frac{hc}{E}$.

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