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  • A plane mirror is placed at origin parallel to y-axis facing the positive x-axis. An object starts from (2,0 ,0) with a velocity <img alt="(2\hat{i}+2\hat{j})" src="https://entrancecorner.onco

A plane mirror is placed at origin parallel to y-axis facing the positive x-axis. An object starts from (2,0 ,0) with a velocity (2\hat{i}+2\hat{j}) m/s. The relative velocity of the image with respect to object is along.

Option: 1

Positive x-axis


Option: 2

Negative x-axis


Option: 3

Positive y-axis


Option: 4

Negative y-axis


Answers (1)

best_answer

As we learn

Moving Object & Mirror -

\vec{V_{i}}-\vec{V_{m}}=- \left (\vec{V_{o}}-\vec{V_{m}} \right )

- wherein

\vec{V_{i}}= Velocity of image

\vec{V_{m}}= Velocity of mirror

\vec{V_{o}}= Velocity of object

 

 \vec{V_{i}}= -2\hat{i}+2\hat{j}

\Rightarrow \vec{V_{i,o}}= \vec{V_{i}}-\vec{V_{o}}=(-2\hat{i}+2\hat{j})-(2\hat{i}+2\hat{j})=-4\hat{i}

\therefore velocity of image w.r.t object is along negative x-axis.

 

Posted by

Pankaj

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