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1. Which of the following statements is not true about the reflection of light?
a)All substances absorb at least some incoming light and reflect the rest.
b)Perfect reflectors are common.
c)The manner in which light is reflected from a surface depends on the surfaces smoothness.
d)No surface is a perfect reflector.
2.What type of light reflection occurs when light is reflected from a rough,textured surface?
a)diverse
b)variegated
c)specular
d)diffuse
3.In how many directions is light reflected from a smooth surface?
a)one
b)two
c)multiple
d)infinite
4.According to the law of reflection,the angle of incidence is the angle of reflection.
a)less than
b)equal to
c)greater than
d)always twice
5.The normal to the surface is drawn to the surface.
a)parallel
b)tangential
c)perpendicular
d)none of the above