Q. A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 30.00°. The indices of refraction for the blue and red components of the ray are: blue (ndiamond = 2.444, ncrown glass = 1.531), and red (ndiamond = 2.410, ncrown glass = 1.520). Determine the angle between the refracted blue and red rays in the crown glass.
Q. A car crashes into a wall at 25 m/s and its contents are brought to rest in 0.1s. Show that the average force exerted on a 75-kg test dummy by the seat belt is more than 18,000 N