a light ray parallel to the principal axis reflected from the mirror.draw the reflected ray and show the directions
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Answered by
5
Answer:
A ray of light parllel to principal axis (shows that u=∞) after reflection from concave mirror (of focal length f) passes through.
u
−1
+
v
1
=
f
1
So
∞
−1
+
v
1
=
f
−1
v
1
=
f
−1
v=−f
i.e. it passes through focus.
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3
Explanation:
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