The velocity of image when object and mirror both are moving towards each other

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

admin:

Related Questions

  1. A boy standing at top of a tower of 20 m height drops a stone
  2. The angle of a prism is A. One of its refracting surfaces is silvered
  3. For a parallel beam of monochromatic light of wavelength λ diffraction is produced
  4. A fringe width of a certain interference pattern is β=0.002 cm. What is the distance
  5. The additional energy that should be given to an electron to reduce its de-Broglie