A point object is moving towards a plane mirror as shown in figure. Choose the correct options.

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Relative velocity between object and image is $2 v$

Image velocity will also make an angle $θ$ with mirror

Speed of image is also $v$

Relative velocity between object and image is $2 v \sin θ$

answer is A, B, D.

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Detailed Solution

Component of velocity of image parallel to the mirror = $C o m p o n e n t o f o b j e c t v e l o c i t y p a r a l l e l t o t h e m i r r o r = v \cos θ .$

Component of velocity of the image perpendicular to the mirror = v sin $θ a n d i s d i r e c t e d t o w a r d s t h e m i r r o r .$

Therefore velocity of the image relative to the object = 2v cos $θ$

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