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A point object is placed at …

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A point object is placed at a distance of 20cm from a convex mirror of a focal length 20cm. The image will form at
  • 2 answers

Honey Jain 5 years, 3 months ago

I have one doubt that is v=-10 or 10 because u = 20 mean u=object which go towards pole. So,u is +ve. Please clear my doubt.???

Gaurav Seth 5 years, 3 months ago

Behind the mirror (v = 10cm)

Explanation:

u = -20cm

f = 20cm

1/f = 1/v + 1/u

1/20 = 1/v + 1/(-20)

2/20 = 1/v

v= 10cm

As v is positive means it will form behind the mirror.

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