Answer:
The distance between the screen and slit is 1.08 m
Step-by-step explanation:
Given that,
Wavelength = 681 nm
Width a= 0.109 mm
Number of fringe n = 14
Distance from the center of the central maximum d= 9.51 cm
We need to calculate the distance between the screen and slit
Using formula of distance

Where, a = width
d = distance from the center of the central maximum
= wavelength
Put the value into the formula


Hence, The distance between the screen and slit is 1.08 m