monochromatic 588.6 nm light is incident on a diffraction grating containing 4650 lines per centimeter. Find the angle of the first-order maximum

Question

anonymous · Answer

First, we must calculate the slit separation d,
which is equal to the inverse of the number n
of lines per centimeter

d= 1/n

1/4650= .000215053

=2150.53nm

For the first-order maximum (m = 1), we get

588.6
-----
2150.53

=.27369

arcsin(.27369

=theta


=15.88 degrees

anonymous · Answer

This was VERY helpful! Thank you :)

anonymous · Answer

I will send you a very good website: http://myspace.pc.edu/rarts/public_html/courses/physics/Physics/Physics2/hw/1-11.pdf