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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at curved surface/LensMedium2 minQB

PhysicsMediumsingle choice

Principal axis of a thin lens is the $x$ -axis. The coordinates of a point object and its image are ( $- 20$ cm, 2 cm) and (25 cm, $- 1$ cm). The lens is located at:

Options:

Answer:

Solution:

Magnification $m = \frac{- 1}{2} = - \frac{25 - x}{20 + x} \Rightarrow 2 (25 - x) = 20 + x \Rightarrow 30 = 3 x \Rightarrow x = + 10$ cm.

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at curved surface/Lens

⏱ 2mℹ️ Source: QB

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