When monochromatic light illuminates a grating with 7000 lines ...

[JGIBBSON]

When monochromatic light illuminates a grating with 7000 lines per centimeter, its second order maximum is at 62.4. What is the wavelength of the light?
 
  A) 452 nm B) 336 nm C) 633 nm D) 752 nm E) 363 nm

Question 2

A 2.00-kg solid sphere of radius 5.00 cm rolls down a 20.0 inclined plane starting from rest.
 
  (a) What is the magnitude of the acceleration of the center of mass of the sphere?
  (b) How far down the plane does it roll without slipping in 1.00 s?

[reversalruiz]

Answer to Question 1

C

Answer to Question 2

(a) 2.44 m/s2
(b) 1.22 m

[JGIBBSON]

Excellent

[kishoreddi]

Wow, this really help