Light of wavelength 530.00 nm is incident normally on a diffraction grating, and the first‑order maximum is observed to be 33.0∘ from the normal. How many slits per millimeter are marked on the grating?

1028 slits/mm

Explanation:

We are given that

Wavelength of light,

1nm=

n=1

We have to find the number of slits per mm are marked on the grating.

We know that

Using the formula

1m=

mm

Number of slits=

Number of slits=/mm

Number of slits=1028/mm

Hence, 1028 slits/mm are marked on the grating.

1027.6 lines per mm.

Explanation:

wavelength = 530 nm

order, m= 1

Angle = 33 degree

Let the slits per mm is 1/d.

So,

not too sure thinking all accelerations are pointed down