Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at curved surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

An object and a concave mirror are approaching each other with velocities $10 m/s$ and $5 m/s$ as shown in figure. The velocity of image of object at the instant shown in figure is

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Answer:

Solution:

The formula for velocity of image is given by :

$= V_{I m} = \frac{f}{f - u} = \frac{- 10}{- 10 + 15} = - 2$

$∴ V_{I m} = - 4 V_{O m}$

Therefore, ${\vec{V}}_{I} - 5 (- \hat{i}) = - 4 \{10 \hat{i} + 5 \hat{i}\}$

$\Rightarrow {\vec{V}}_{I} = - 65 \hat{i}$

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

⏱ 2mℹ️ Source: PYQ_2020

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