A single slit, 1400 nm wide, forms a diffraction pattern when illuminated by monochromatic light of 490-nm wavelength
What is the largest angle from the central maximum at which the intensity of the light is zero?
A) 44°
B) 41°
C) 38°
D) 35°
E) 32°
A
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What do we mean when we say that the Sun is in gravitational equilibrium?
A) There is a balance within the Sun between the outward push of pressure and the inward pull of gravity. B) The Sun maintains a steady temperature. C) The hydrogen gas in the Sun is balanced so that it never rises upward or falls downward. D) The Sun always has the same amount of mass, creating the same gravitational force.
The distance a freely falling bowling ball falls each second
A) is about 5 m. B) is about 10 m. C) increases. D) none of the above
Matter flowing into a black hole cools until it is accelerated into a jet
a. True b. False Indicate whether the statement is true or false
The combined mass of a binary system is three solar masses. Star A is 1 AU and Star B is 2 AU from the center of mass. What are the masses of Star A and Star B, respectively?
a. 2.5, 0.5 b. 1, 2 c. 2, 1 d. 0.5, 2.5