Science, asked by rtrravi97, 7 months ago

Define focal length?

plzzzz

Answers

Answered by BhavanaB4004

Answer:

The distance between the centre of a mirror !

Explanation:

Hope it is useful for you !

Answered by gauravpurohit685

Answer:

When all light rays parallel to principle axis meet, the point where they meet is called focus and length between focus and pole is called focal length.

f = R/2

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Define focal length? plzzzz ​

Answers

Define focal length?

plzzzz