- An object is placed 20 cm from a diverging lens. If the distance
between the lens and the image is 8 cm, what is the magnification?
(A)
(B)
(C)
(D) 2
(E)
- A rope stretched between two fixed points can support
transverse standing waves. What is the ratio of the sixth harmonic
frequency to the third harmonic frequency?
(A)
(B)
(C) 2
(D) 2
(E) 4
- In which of the following situations involving a source of sound
and a detector of the sound is it possible that there is NO perceived
Doppler shift?
(A) The source travels toward the stationary detector.
(B) The detector travels toward the stationary source.
(C) Both the source and the detector travel in the same
