Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at curved surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

Sun subtends an angle of $0.5 °$ at the centre of curvature of a concave mirror of radius of curvature $15 m$ . The diameter of the image of the sun formed by the mirror is

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Answer:

Solution:

$θ = \frac{1}{2} \times \frac{π}{180}$ rad

$\frac{d i a m e t a r o f i m a g e}{f o c a l l e n g t h} = θ$

Or diameter of image

$= \frac{1}{2} \times \frac{π}{180} \times \frac{15}{2} \times 100 c m = 6.55 c m$

Subject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at curved surface

⏱ 2mℹ️ Source: PYQ_2020

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