A ray of light is incident on a pane of common window glass at an angle of 35° to the normal. The angle of the reflected ray with respect to the normal is
1) 35°
2) 55°
3) 90°
4) 20°
and the refracted ray within the glass may be at an angle of
5) 35°.
6) 55°.
7) 22°.
8) 75°.
Answer: 1, 7
You might also like to view...
A Doppler weather radar operates at a frequency of 3.40 GHz. The wave from this radar system reflects from an approaching weather system moving with a speed of 39.0 m/s. What is the difference in frequency between the outgoing and returning waves?
A) 442 Hz B) 351 Hz C) 419 Hz D) 322 Hz E) 670 Hz
Why is ten million degrees critical to the proton-proton cycle?
What will be an ideal response?
How much kinetic energy does a 0.30-kg stone have if it is thrown at
A) 290 J B) 580 J C) 440 J D) 510 J
By what factor is the self-inductance of a solenoid changed if only its cross-sectional area, A, is doubled?
a. 1/2 c. 2 b. 4 d. 8