Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at plane surfaceEasy2 minPYQ_2020

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A point object is moving with a speed $v$ in front of an arrangement of two mirrors as shown in the figure. The magnitude of velocity of the image in mirror $M_{1}$ with respect to the image in mirror $M_{2}$ is

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Answer:

Solution:

Angle between $v_{I_{1}}$ and $v_{I_{2}}$ is $2 θ$ . The magnitudes of these vectors is $v$ .

$∴ | {\vec{v}}_{I_{1}} - {\vec{v}}_{I_{2}} | = \sqrt{v^{2} + v^{2} - 2 v \cdot v \cdot \cos 2 θ}$

$= 2 v \sin θ$

Subject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at plane surface

⏱ 2mℹ️ Source: PYQ_2020

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