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Find the position, magnification and nature …

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Find the position, magnification and nature of an image formed when a 2cm high object is placed at a distance of 15cm infront of a convex mirror of focal length 10 cm.

Posted by Preety Th 5 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 5 months ago

Height of the object =2 cm

U(object distance) = -15 as u is always negative

F = -10 (as it is always negative for concave miror and lens )

1/F =1/v + 1/u

-1/10 = 1/v + (-1/15)

-1/10 +1/15 =v

-3+2/30 =v

V=-30cm

Hi/Ho = - V/U

Hi /2 = -(-30/15)

Hi =-30×2÷15

Hi =-4cm (Real and inverted)

1Thank You

Khushboo Tiwari 5 years, 5 months ago

Virtual and errect

1Thank You

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CBSE > Class 10 > Science