Light of wavelength 645 nm is incident on a double slit. the angle between the central bright fringe and the second dark fringe is 4.90°. determine the separation d of the slits.

Slit separation,

Explanation:

It is given that,

Wavelength of light,

The angle between the central bright fringe and the second dark fringe,

In case of double slits, the condition for dark fringe is given by :

n = 2

So, the slit separation is . Hence, this is the required solution.

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)