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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at curved surface/LensMedium2 minQB

PhysicsMediumsingle choice

. A luminous object is kept is at a distance D from a screen. In order to obtain the image of the same size as the object, the focal length of a convex lens to be inserted between them must be

Options:

Answer:

Solution:

$∣ h_{1} ∣ = h_{0} \Rightarrow m = \pm 1$

⇒ object is at 2f and image is 2f from lens.

$D = 4 f \Rightarrow f = \frac{D}{4}$

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

⏱ 2mℹ️ Source: QB

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