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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at curved surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

An object is placed at a distance $20 cm$ from the pole of a convex mirror of focal length $20 cm$ . The image is produced at

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Answer:

Solution:

$u = - 20 c m, f = 20 c m$

From mirror formula,

$\frac{1}{f} = \frac{1}{v} + \frac{1}{u}$

$\frac{1}{20} = \frac{1}{v} + \frac{1}{- 20}$

$\frac{1}{v} = \frac{1}{20} + \frac{1}{20}$

$\frac{1}{v} = \frac{2}{20} \Rightarrow v = 10 c m$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at curved surface

⏱ 2mℹ️ Source: PYQ_2020

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