Question

What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common? A) They are opaque. B) They refract light. C) They reflect light. D) They are translucent.

Answer 1

B they refract light i took the tesxt

Answer 2

By definition, when the speed of the light changes when it passes from a material to another, this is called "Refraction of light". This happens when there is a difference in the index of refraction between both mediums o materials. Therefore, that speed depends of the medium through  it passes. 
 
 The index of refraction is expressed as below: 
 n=c/v
 
 "n"  is the index of refraction.
 "c" is is the speed of light.
 "v" is the phase velocity of light in the medium.
 
 A prism, a magnifying glass, a microscope, and eyeglasses refract light. Therefore, the correct option is: B) They refract light.