Question

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Here YDSE stands for Young's Double Slit Experiment.

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Answer 1

$\large\rm { I = I_{max} \cos^{2} \frac { \phi}{2}}$

$\large\rm { \frac {3}{4} I_{max} = I_{max} \cos^{2} \frac { \phi}{2} \ \bold{or} \ \cos \frac{ \phi}{2} = \frac { \sqrt{2}}{2}}$

$\large\rm { \therefore \phi = \frac { \pi}{3}}$

$\large\rm { = ( \frac {2 \pi}{\lambda} ) (\ \Delta x)}$

$\large\rm { = \frac { 2 \pi}{\lambda} ( \frac { yd}{D} ) }$

$\large\rm { \therefore y = \frac { \lambda D}{6d}}$

$\large\rm { = \frac { (600×10^{-19})(1.2)}{(6)(0.25×10^{-2} ) }}$

$\large\rm { = 48 \mu m }$

Answer 2

Answer:

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Explanation:

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