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An object and a concave mirror are approaching each other with velocities 10 m/s and 5 m/s as shown in figure. The velocity of image of object at the instant shown in figure is

Options

  1. A65 m/s i ^
  2. B65 m/s - i ^
  3. C40 m/s i ^
  4. D40 m/s - i ^

Correct answer

B. 65 m/s - i ^

Step-by-step solution

The formula for velocity of image is given by : = V I m = f f - u = - 10 - 10 + 15 = - 2 ∴ V I m = - 4 V O m Therefore, V → I - 5 - i ^ = - 4 10 i ^ + 5 i ^ ⇒ V → I = - 65 i ^

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