Question

A commercial diffraction grating has 300 lines per mm. When a student shines a 470 nm laser through this grating, how many bright spots could be seen on a screen behind the grating

Answer 1

Answer:

Evaluate the following numerical expressions.

6 + 3 • 4 =

18

(6 + 3) ÷ (4 – 5) =

Explanation:

Evaluate the following numerical expressions.

6 + 3 • 4 =

18

(6 + 3) ÷ (4 – 5) =