The rest mass of a photon is zero
Indicate whether the statement is true or false
TRUE
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Monochromatic light (? = 500 nm) is incident on a soap bubble (n = 1.4) that is 500-nm thick. Calculate the change of phase of the light that penetrates the front surface, reflects from the second surface, and emerges through the first surface as an angle between 0° and 360°?
a. 280° b. 160° c. 220° d. 100° e. 290°
The circular velocity of a satellite orbiting Earth is given by 
. In this equation,
M represents the mass of the satellite, and r is its radius.
M represents the mass of Earth, and r the radius of Earth.
M represents the mass of the satellite, and r the distance from Earth to the satellite.
M represents the mass of Earth, and r the distance from Earth to the satellite.
M represents the mass of the satellite, and r the distance from Earth's surface to the satellite.
Light of wavelength 580 nm is incident on a slit of width 0.30 mm. An observing screen is placed 2.0 m past the slit. Find the distance on the screen of the first order dark fringe from the center of the pattern
A) 0.26 mm B) 1.5 mm C) 1.9 mm D) 3.9 mm E) 7.7 mm
Generators that were used in the past to supply electricity in automobiles have been replaced by
A) batteries. B) armatures. C) dynamos. D) alternators. E) commutators.