Question

If the variation of momentum of a photon is plotted against the wavelength associated with it, which of the following graphs will best represent it?

• A.
• B.
• C.
• D. d

Answer 1

The correct option is B

As we know;
momentum of photon $P=\frac{E}{c}=\frac{h}{\lambda }$
Here, $h=$ Plank's constant.
$\therefore p\propto \frac{1}{\lambda }$
$\therefore$ If $p$ plotted on y-axis & $\lambda$ on x-axis,
it forms a rectangular hyperbola.



Hence, $\left(B\right)$ is the correct answer.

$$\begin{array}{c}\text{Why this Question?}\\ \text{The equation to be represented on the graph. Typical question for NEET, can be asked}\end{array}$$