Geometrical OpticsHard
Question
A plane mirror is moving with velocity 4î + 5ĵ + 8
. The point object in front of the mirror moves with a velocity 3î + 4ĵ + 5
. Here 
is along the normal to the plane mirror and facing towards the object. The velocity of the image is :
. The point object in front of the mirror moves with a velocity 3î + 4ĵ + 5. Here is along the normal to the plane mirror and facing towards the object. The velocity of the image is : Options
A.- 3î - 4ĵ + 5
B.3î + 4ĵ + 11
C.- 3î - 4ĵ + 11
D.7î + 4ĵ + 11
Solution
= 4î + 5ĵ + 8
, 
= 3î + 4ĵ + 5∵ Plane of the mirror is xy
∴
= 3 + 4 and for 
= 2 vMZ - vOZ = 2 × 8 - 5 = 11
⇒
= 3î + 4ĵ + 11
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