Question

If a plane mirror les on x-z plane, a light vector 2î + 3j - 4kon reflection becomes
(A) 2ỉ +39 - 4
(B) 2î - 39 - 4
(C) -2 +39 - 4
(D) 2î +39 + 4​

Answer 1

Answer:

a option I thing is right

Answer 2

Answer:

The correct answer is (A)

Explanation:

An incident ray is a rectilinear ray of light that strikes a surface, known as incident ray on that spot(surface). The angle between this ray and the perpendicular or normal to the surface is the angle of incidence. Incident ray is î + ĵ + k

A ray of light or another form of radiant energy that is thrown back from a nonpermeable or nonabsorbing surface is called reflected ray. The ray of light that bounces back from the surface of reflection is called the reflected ray. All the rays the incident, normal and reflected lie on the same plane. Reflected ray is − î − ĵ + k

Thus using the above formula the final answer we get is 2ỉ +39 - 4

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