Name
Phys 2010 (NSCC), Fall 2006
Problem Set #14
1. A bat can detect small objects such as an insect whose size is approximately equal to one
wavelength of the sound the bat makes. If bats emit chirps at a frequency of 60.0 kHz, and
if the speed of sound in air is 340 m
s, what is the smallest insect a bat can detect?
2. If the frequency of oscillation of the wave emitted by an FM radio station is 103.7 MHz,
determine (a) the waves’s period of vibration and (b) its wavelength. (Radio waves travel at
the speed of light, 3.00 ×108m
s.)
1
