Author Question: Monochromatic light is incident on a grating that is 75 mm wide and ruled with 50,000 lines. The ... (Read 170 times)

itsmyluck · **on:** Jul 29, 2018

Monochromatic light is incident on a grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen at 32.5. What is the wavelength of the incident light?

A) 202 nm B) 605 nm C) 452 nm D) 403 nm E) 806 nm

Question 2

A mass of 1.53 kg is attached to a spring and the system is undergoing simple harmonic oscillations with a frequency of 1.95 Hz and an amplitude of 7.50 cm. What is the total mechanical energy of the system?

A)

0.844 J

B)

0.646 J

C)

0.633 J

D)

0.955 J

E)

0 J