QJEEM25Ph1431: JEE Main 2025 Physics - Class 12 JEEM25Ph1431 Solution: Given below are two statements. One is labelled as Assertion…

Question

Verified Solution • 2025–26 Session moderate

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 :

A (A) is true but (R) is false
B Both (A) and (R) are true and (R) is the correct explanation of (A)
C (A) is false but (R) is true
D Both $(\mathbf{A})$ and $(\mathbf{R})$ are true but $(\mathbf{R})$ is NOT the correct explanation of (A)

Accepted Answer

$\begin{aligned} β = \frac{λ D}{d} & λ_{R} > λ_{b} \\ ∴ β_{R} > β_{b} \end{aligned}$

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