Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at plane surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

An object is moving towards a mirror with a velocity of $10 m s^{- 1}$ as shown in the figure. If the collision between the mirror and the object is perfectly elastic, then the velocity of the image after collision with mirror in vector form is

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Answer:

Solution:

${\vec{V}}_{i m} = V_{o b j} c o s 2 θ (\hat{- j}) + V_{o b j} s i n 2 θ (\hat{- i})$

${\vec{V}}_{i m} = - 10 c o s 30 \hat{j} - 10 s i n 30 \hat{i}$

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

⏱ 2mℹ️ Source: PYQ_2020

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