Question

 A real image is formed at 30cm in front mirror of focal length 10 cm. Find the distance of object and type of mirror


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Answer 1

20 cm

because,

real image is formed at 30cm in front mirror

and focal length 10 cm

so,

real image - focal length

=30-10

=20

Oᴜʀ Aɴsᴡᴇʀ Is 20

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Answer 2

Answer:

20 cm

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