of Name Date 1) A concave mirror (al) converges light. ) diverges light. 2) The
ID: 3309051 • Letter: O
Question
of Name Date 1) A concave mirror (al) converges light. ) diverges light. 2) The focal length of a concave or a convex mirror is approximately equal to (a) half of the radius of the mirror. (b) the radius of the mirror 3) The Law of Reflection states that the reflected angle is equal to al) the incident angle. (b) two times of the incident angle. (c) half of the incident angle. (d) 90 degrees minus the incident angle. 4) The Law of Reflection applies to (a) plane mirrors (b) convex mirrors. (c) concave mirrors (d) all kinds of mirrors. 5) The incident angle and the reflected angle are (a) both measured from the normal line. (b) both measured from the line tangent to the mirror surface. ic) measured from the normal line and the line tangent to the mirror surface, respectively.Explanation / Answer
(1) A concave mirror has the reflecting surface towards the center of curvature hence it converges light. Option (a) is correct option.
(2) The focal length of a concave or a convex mirror is approximately equal to half of the radius of the mirror. Option (a)
(3) The law of reflection states that the reflected angle is equal to the incident angle. Option (a)
(4) The law of reflection applies to all kinds of mirrors.The curved surface can always be visualized as made up of very small (infinitesimal) plane surfaces joined together. One needs to draw normal to the tangential plane at the point of incidence and proceed. Option (d)
(5) The incident angle and the reflected angle are both measured from the normal line. Option (a)
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