Light arriving at a concave mirror on a path through the center of curvature is

Question

Light arriving at a concave mirror on a path through the center of curvature is reflected
a) back parallel to the axis
b) back on itself
c) through the focal point
d) midway between the focal point and the center of curvature

Light arriving at a concave mirror on a path through the focal point is reflected
a) back parallel to the axis
b) back on itself
c) through the focal point
d) through the center of curvature


A ray of light, which is traveling in air, is incident on a glass plate at a 45 degree angle. The angle of refraction in the glass
a) is less than 45 degrees
b) is greater than 45 degrees
is equal to 45 degrees
d) could be any of the above; it all depends on the index of refraction of glass

Explanation / Answer

Light arriving at a concave mirror on a path through thecenter of curvature is reflected back on itself

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