A ray of light traveling in a calm pond strikes the surface at an angle of incidence which is 2° larger than the critical angle. This ray will
A. be refracted toward the normal to the surface in the air.
B. undergo total internal reflection and not enter the air at all.
C. be refracted away from the normal to the surface in the air.
Answer: B
You might also like to view...
As an electron slows down from 0.9980c to 0.5000c, how much momentum does it lose? (c = 3.0 × 108 m/s, melectron = 9.11 × 10-31 kg)
What will be an ideal response?
A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The frequency of the electromagnetic oscillations in the circuit is
a. 5.73 × 10^?4 Hz. b. 9.55 × 10^?3 Hz. c. 0.442 Hz. d. 2.65 Hz. e. 44.0 Hz.
A diamond is the hardest mineral on Earth, yet it is mostly empty space because the carbon atoms are
A. held together by electrical forces. B. themselves mostly empty space. C. not as close together as they should be. D. in perpetual motion.
The acceleration due to gravity is 10 m/sec2. If an object falls from rest, its instantaneous speed at the end of the fifth second is (neglecting air resistance)
A) 10 m/sec. B) 5 m/sec. C) 100 m/sec. D) 50 m/sec. E) impossible to determine from the given information.