NAO COMPREHENSIVE TEST BANK FULL
QUESTIONS AND VERIFIED ANSWERS
LEARNING PACKAGE
●● Deviation (Angle of)
Answer: the angle a ray of light is changed from its original path
●● Diffuse Relection
Answer: a reflection from a rough surface- the reflection does not
produce a clear image
●● Incidence (Angle of)
Answer: the angle which a ray of light makes the surface of a refracting
medium
●● Reflection
Answer: the return of light waves from a surface the production of an
image
●● Refraction
Answer: the bending of light when going from one medium into another
,●● Refraction (Angle of)
Answer: the angle created when a ray of light passes from one medium
into another
●● Specular Reflection
Answer: the forming of a clear image when light strikes a surface
●● Why is a red pencil red?
Answer: It reflects red rays back toward the eye and absorbs all the other
rays of visible light
●● Why is the blacktop black?
Answer: It does not reflect any rays back toward your eye; rather it
absorbs them all
●● If a light beam passes through a green sunglasses lens, why will the
exciting light be green?
Answer: The green rays are refracted through the lens and all other color
rays are absorbed by the pigments in the lens material
●● When a ray of light travels from air into water (which is denser than
air) what happens to the ray of light if the ray is perpendicular to the
surface?
, Answer: If the ray is perpendicular to the surface it slows down but does
not change direction; it is not deviated or displaced
●● When a ray of light travels from air into water (which is denser than
air) what happens to the ray of light if the ray is not perpendicular to the
surface?
Answer: If the ray is not perpendicular to the surface it slows down and
changes direction toward the normal; it is deviated from its original path
●● When a ray of light travels from water into air ( which is rarer than
water) what happens to the ray of light if the ray is perpendicular to the
surface?
Answer: If the ray is perpendicular to the surface it speeds up but does
not change direction; it is not deviated or displaced
●● hen a ray of light travels from water into air ( which is rarer than
water) what happens to the ray of light if the ray of light is not
perpendicular to the surface?
Answer: If the ray is not perpendicular to the surface it speeds up and
changes direction away from the normal; it is deviated from its original
path
●● What does critical angle mean?
Answer: a light ray leaving a denser material is rarer material that is at
an angle of normal that results in it traveling parallel to the surface of the
QUESTIONS AND VERIFIED ANSWERS
LEARNING PACKAGE
●● Deviation (Angle of)
Answer: the angle a ray of light is changed from its original path
●● Diffuse Relection
Answer: a reflection from a rough surface- the reflection does not
produce a clear image
●● Incidence (Angle of)
Answer: the angle which a ray of light makes the surface of a refracting
medium
●● Reflection
Answer: the return of light waves from a surface the production of an
image
●● Refraction
Answer: the bending of light when going from one medium into another
,●● Refraction (Angle of)
Answer: the angle created when a ray of light passes from one medium
into another
●● Specular Reflection
Answer: the forming of a clear image when light strikes a surface
●● Why is a red pencil red?
Answer: It reflects red rays back toward the eye and absorbs all the other
rays of visible light
●● Why is the blacktop black?
Answer: It does not reflect any rays back toward your eye; rather it
absorbs them all
●● If a light beam passes through a green sunglasses lens, why will the
exciting light be green?
Answer: The green rays are refracted through the lens and all other color
rays are absorbed by the pigments in the lens material
●● When a ray of light travels from air into water (which is denser than
air) what happens to the ray of light if the ray is perpendicular to the
surface?
, Answer: If the ray is perpendicular to the surface it slows down but does
not change direction; it is not deviated or displaced
●● When a ray of light travels from air into water (which is denser than
air) what happens to the ray of light if the ray is not perpendicular to the
surface?
Answer: If the ray is not perpendicular to the surface it slows down and
changes direction toward the normal; it is deviated from its original path
●● When a ray of light travels from water into air ( which is rarer than
water) what happens to the ray of light if the ray is perpendicular to the
surface?
Answer: If the ray is perpendicular to the surface it speeds up but does
not change direction; it is not deviated or displaced
●● hen a ray of light travels from water into air ( which is rarer than
water) what happens to the ray of light if the ray of light is not
perpendicular to the surface?
Answer: If the ray is not perpendicular to the surface it speeds up and
changes direction away from the normal; it is deviated from its original
path
●● What does critical angle mean?
Answer: a light ray leaving a denser material is rarer material that is at
an angle of normal that results in it traveling parallel to the surface of the
