Q123 / 125 · BITSAT 2013 · Physics

In Young's double slit experiment 10 th order maximum is obtained at the point of observation in the interference pattern for $\lambda=7000 \AA$. If the source is replaced by another one of wavelength $5000 \AA$ then the order of maximum at the same point will be-

A
12 th
Correct answer
B
14 th
C
16 th
D
18 th

Solution

$\mathrm{n}_{1} \lambda_{1}=\mathrm{n}_{2} \lambda_{2}$

Hence, the correct answer is option: 'B'.

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