The velocity of waves having wavelength 0.643 m and frequency 3.25 E 10 Hz is
a. 2.09 E 10 m/s.
b. 5.05 E 10 m/s.
c. 1.97 E 10 m/s.
d. 50.5 E 10 m/s.
Monochromatic light passes through two parallel narrow slits and forms an interference pattern on a screen. As the distance between the two slits is decreased, the distance between light bands in the pattern on the screen will
a. decrease.
b. increase.
c. remain the same.
What is the critical angle for light traveling from crown glass (n = 1.52) into water (n = 1.33)?
a. 42 degrees
b. 48 degrees
c. 57 degrees
d. 61 degrees
Monochromatic light with a wavelength of 6.4 E -7 meter passes through two narrow slits, producing an interference pattern on a screen 4.0 meters away. The first order bright band lines is 2.0 E -2 meters away from the central bright maxima.
What is the distance between the slits?
a. 1.3 E -4 m
b. 8.0 E -6 m
c. 3.2 E -9 m
d. 7.8 E3 m
Sharon is clicking a picture of her grandmother who is standing 5.4 m in front of a camera, which has a converging lens with a focal length of 0.075 m. The distance of the image from the lens is
a. 0.087 m.
b. 0.076 m.
c. 0.074 m.
d. 0.065 m.
e. 0.053 m.
The focal length of a lens is determined by the curve of the lens and the material that the lens is made from.
a. true
b. false
Find the wavelength of a wave traveling at 3.26 E6 m/s with a period of 0.0125 s.
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