Question

The frequency of the light that has an energy of 5 times 10^3 J is approximately: a. 4.35 times 10^-34 Hz b. 2 times 10^13 Hz c. 3.313 times 10^-32 Hz d. 7.55 times 10^14 Hz Total internal reflection occurs when the angle of incidence is: a. greater than the angle of refraction b. Greater than the critical angle c. Equal to the angle of incidence d. Equal to the critical angle The critical angle for light moving from quartz (n = 1.54) to water (n = 1.33) is: a. 30.27 degree b. 95.7 degree c. 90 degree d. 0 degree When a light ray passes from zircon (n = 1.923) into fluorite (n = 1.434) at an angle of 60 its path is a. bent toward the normal. b. bent away from the normal. c. parallel to the normal. d. not bent. The visible region of the electromagnetic spectrum extends: a. from 400 pm to 700 pm b. from 400 nm to 700 nm c. from 400 mu m to 700 mu d. from 400 mm to 700 mm A light ray in a darkened room strikes the surface of water (n = 1. 33) at an angle

Answer 1

ん 6.64 K to-ay 3 1-33 ISY