1.

Find the focal length of the convex mirror if image distance is 4cm and object distance is 16cm ​

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Answer:

1/F=1/v+1/u here OBJECT DISTANCE is ALWAYS with( -) SIGN then 1/f=1/4+(-1/16) then 1/f=1/4-1/16 then 1/f =4-1/16 then 1/f=3/16 then f is 16/3



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