Question 49 of 191
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In Young's double slit experiment, the fringes produced by red light are closer as compared to those produced by blue light.
Reason (R): The fringe width is directly proportional to the wavelength of light.
In the light of the above statements, choose the correct answer from the options given below :
Show answer and solution
Answer: (D) (A) is false but (R) is true
$\begin{aligned}
& \beta=\frac{\lambda D}{d} \\
& \lambda_{\text {red }} \lt \lambda_{\text {blue }}
\end{aligned}$
Assertion is false
Reason is true
& \beta=\frac{\lambda D}{d} \\
& \lambda_{\text {red }} \lt \lambda_{\text {blue }}
\end{aligned}$
Assertion is false
Reason is true