In YDSE, the screen distance is and the slit separation is . The slits are…

PHYSICS · Subjective · CBSE · Physics · Wave Optics · Wave Optics

Problem

In YDSE, the screen distance is

D=1.2\,\mathrm{m}

and the slit separation is

d=0.25\,\mathrm{cm}

. The slits are illuminated with coherent light of wavelength

600\,\mathrm{nm}

. Calculate the distance

y

above the central maximum at which the intensity is

75\%

of the maximum.