Question

pbject distance and image distance of a lens are -60cm and-20cm respectively then themagnification of lens will be

Answer 1

• object distance=u=-60cm
• Image Distance=v=-20cm

We know

$\boxed{\sf Magnification=-\dfrac{v}{u}}$

$\\ \sf\longmapsto Magnification=-\dfrac{-60}{-20}$

$\\ \sf\longmapsto Magnification=\dfrac{60}{20}$

$\\ \sf\longmapsto Magnification=3$

Answer 2

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