This question has Statement -1 and Statement -2. Of the four choi… - Vidyadip

MCQ

This question has Statement $-1$ and Statement $-2.$ Of the four choices given after the Statements, choose the one that best describes the two Statements.

Statement $-1:$ In Young's double slit experiment, the number of fringes observed in the field of view is small With longer wavelength of light and is large with shorter wavelength of light.

Statement $-2:$ In the double slit experiment the fringe width depends directly on the wavelength of light.

A
Statement $-1$ is true, Statement $-2$ is true and the Statement $-2$ is correct explanation of the Statement $- 1.$
B
Statement $- 1$ is false and the Statement $-2$ is true.
✓
Statement $- 1$ is true Statement $-2$ is true and the Statement $-2$ is not correct explanation of the Statement $- 1$.
D
Statement $-1$ is true and the Statement $-2$ is false .

✓

Answer

Correct option: C.

Statement $- 1$ is true Statement $-2$ is true and the Statement $-2$ is not correct explanation of the Statement $- 1$.

c
Fringe width $\mathrm{B}=\frac{\mathrm{D}}{\mathrm{d}} \lambda$

And number of fringes observed in the field

of view is obtaincd by $\frac{d}{\lambda}$

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