Question

Define the given terms.
a. I law of reflection
b. Focus Focal point
c. Image distance
d. Pole​

Answer 1

law of reflection

angle of reflection is equal to angle of incidence

the incident ray, the normal , the reflected ray to the point of incidence all lie in the same plane.

Focus And Focal length

focus is the point on principal axis where all parallel lines meet after reflection

distance between focus and pole is called focal length

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