What is the critical angle for light traveling from crown glass (n = 1.52 ) into water (n = 1.33 )?
A) 42°
B) 48°
C) 53°
D) 57°
E) 61°
E
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Three devices that use electromagnetic induction in their operation are generators, transformers, and dynamic microphones
Indicate whether the statement is true or false
A damped oscillator is released from rest with an initial displacement of 10.00 cm. At the end of the first complete oscillation the displacement reaches 9.05 cm. When 4 more oscillations are completed, what is the displacement reached?
a. 7.41 cm b. 6.71 cm c. 6.07 cm d. 5.49 cm e. 5.25 cm
The most prominent theory about spiral arms is called the _____
A) spiral quantum fluctuations B) spiral gravitational collapse C) spiral density wave theory D) spiral radiation theory
For what kinds of stars are the masses of stars in the H-R diagram "orderly"? For what kinds of stars are they disorderly? In other words, could you guess the mass of a star from its location (luminosity, temperature) on the H-R diagram?
What will be an ideal response?