plz any one tell me the answer

Monjur Alahi

A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 50 cm from the mirror i) write the type of mirror used

ii) find the distance of the image from the image

iii) what is the focal length of the mirror


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Salim Ahmed Kawsar

Call

It's concave mirror

m= -v/u=-1 =>v=50

1/v+1/u=1/f=> f=25

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