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The velocity of image when object and mirror both are moving towards each other with velocities 4 ms⁻¹ and 5 ms⁻¹ respectively, is
Options
(a) (-14ms⁻¹)
(b) 15ms⁻¹
(c) (-9ms⁻¹)
(d) 14ms⁻¹
Correct Answer:
(-14ms⁻¹)
Explanation:
ʋ(OM) = Velocity of object with respect to mirror = -ʋ(IM)
(Here, -ʋ(IM) = velocity of image with respect to mirror)
ʋ(o) – ʋ(M) = -[ʋ(I) – ʋ(M)]
4 ms⁻¹ – (-5 ms)⁻¹ = -ʋ(I) + (-5 ms⁻¹)
ʋ(I) = – 14 ms⁻¹
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The turn ratio of a transformer is 1:2. An electrolytic dc cell of emf 2 volt is connected
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
- The alternating current in a circuit is given by I=50 sin314t. The peak value
- The young’s modulus of steel is twice that of brass. Two wires of same length
- A simple pendulum oscillates in a vertical plane. When it passes through the mean
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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