Ha, no exactly sure where to start without angles. My thought is since the angle of refraction is half that of the incident angle and your working within 90 degrees, 45 degrees is the only possibility?
Homework Statement
A light ray in air is incident on a glass plate whose index of refraction is 1.42. The angle of refraction (transmitted angle) is one-half the angle of reflection. (Take the index of refraction in air to = 1.00).
A) Relative to the normal to the plate’s surface, what...
Homework Statement
A single slit forms a diffraction pattern, with the first minimum at an angle of 40 from the central maximum. Monochromatic light of 410 nm wavelength is used. The same slit, illuminated by a different monochromatic light source, produces a diffraction pattern with the...
Doc Al,
I want to run this by you if you get this post...
A 3600 line/cm diffraction grating produces a third-order bright fringe at a 31.0 degree angle.
(Recall: 1 cm = 10-2 m; 1 mm = 10-3 m; 1 nm =10-9 m)
A) What wavelength (in nm) of light is being used?
a. 477 nm b. 1430 nm c. 233...
Homework Statement
A photocathode whose work function is 2.9 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm.
A) What is the threshold frequency for photoelectron production?
a. 4 x 1014 Hz b. 7 x 1014 Hz c. 13 x 1014 Hz
B) What is the...
Homework Statement
Summer has arrived and you decide to go to the tanning bed. After arriving, you recall from physics class that the threshold for tissue damage from ultraviolet light corresponds to a wavelength of 300nm. You decide to inquire about the limits of exposure. You're informed...
Homework Statement
The picture of a tree on a 35 mm color slide is 1.7 mm high. It is to be projected onto a screen 8.0 m from the slide, and is to appear 559 mm high.
a) What focal length lens (in meters) is needed?
b) What is the distance in meters between the lens and the slide?
c)...