A country currently has a high dependency ratio (ratio of children to adults). Which of the following scenarios could be true? The country experienced a baby […]
Ultrasound used in a particular medical imager has frequency 4.8 {MHz} and wavelength 0.31 {mm}. Find (a) the angular frequency, (b) the wave number, and (c) […]
. Without changing the slit width in the double slit experiment, what effect on the interference pattern does reducing the height of the slit have? Assume […]