Define focal length??
define by focal length:-
focal length is the distance between pole and focus of a spherical mirror.
FORMULA OF FOCAL LENGTH:-"F".
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Answers
Answered by
3
Answer:
yr definition is right
Explanation:
1/u+1/v=1/f
where,
u is the length between the real object and the mirror.
visit the length between the image and the mirror
hope it will help you
Answered by
3
Answer:
The distance between optical centre and principal
focus is called focal length of a lens
Explanation:
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