41. A light beam coming from an underwater spotlight exits the water (index of refraction
is n=1.33) at an angle of 66.0 to the vertical. At what angle of incidence does it hit
the airwater interface from below the surface?
Homework 13 (Ch27)
Due July 31
1. An oil drop whose mass is determined to be 2.8 10 15 kg is held at rest between
two large plates separated by 1.0 cm when the potential difference between them is
340 V. How many excess electrons does this dro