In a grating experiment, light of 600 nm wavelength produces a ...

[rachel9]

In a grating experiment, light of 600 nm wavelength produces a first-order maximum 0.35 mm from the central maximum on a distant screen.
 
  On the same screen, a second monochromatic source produces a third-order maximum 0.87 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the second source?

Question 2

If the efficiency of a Carnot engine were to be 100, the cool reservoirs would have to be
 
  A) at absolute zero.
  B) at 0C.
  C) at 100C.
  D) infinitely hot.

[dudman123]

Answer to Question 1

500 nm

Answer to Question 2

A

[rachel9]

Thank you!

[dudman123]

Always glad to help...