Physics - Geometrical Optics Question with Solution | TestHub
PhysicsGeometrical OpticsReflection at plane surfaceMedium2 minQB
PhysicsMediuminteger
An object is located near a mirror as shown. A man walks with speed 2 m/s along a line parallel to the mirror, and at a distance 4.5 m away from it. Find the duration (in sec.) for which he can see the image of the object in the mirror.
Answer:
8
Solution:
Similar triangles for the reflected rays: the man first sees the image at 6 m past the object and last at 22 m.
Visible path = 22 - 6 = 16 m.
Answer: 8
Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at plane surface
⏱ 2mℹ️ Source: QB
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