Light passes from air into a block of glass, as shown. Which expression is equal to the refractive index of glass? a) sinW/ sinY
B) sinW/ sinZ
C) sinY/ sinW
D) sinY/ sinX

Why is metal often used for cooking pan?

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine