Home
Class 12
PHYSICS
A police inspector is chasing a thief wh...

A police inspector is chasing a thief who is running away in a car with a speed 3m/s. The speed of police jeep is 12 m/s. Then the speed of image of police jeep as seen by thief in the rear view mirror when the police jeep is at a distance of 30 m is (value of focal length of the rear view mirror is 15 m)

A

2m/s

B

3m/s

C

4m/s

D

1m/s

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE I LEVEL -II (ADVANCED) MORE THAN ONE CORRECT TYPE QUESTIONS)|1 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE I LEVEL -II (ADVANCED) INTEGER TYPE QUESTIONS)|2 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE I LEVEL -I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)|10 Videos

  • ELEMENTS OF VECTORS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|9 Videos

  • LAWS OF MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|98 Videos

Similar Questions

Explore conceptually related problems

A man runs towards a mirror with a speed of 15 m-s^(-1) . What is the speed of his image?

A police party is moving in a jeep at a constant speed v. They saw a thief at a distance x on a motorcycle which is at rest. The moment the police saw the thief, the thief started at constant acceleration a. Which of the following relations is true if the police is able to catch the thief?

A particle is moving along a vertical circle of radius r = 20 m with a constnat vertical circle of radius r = 20 m with a constnat speed v = 31.4m/s as shown is figure . Straight line ABC is horizontal and passes throught the centre of the circle . A shell if fired from point A at the instant when the particle is at C. If distance AB is 20sqrt(3) m and the shell collide with the particle at B , then prove tan theta = ((2 n -1)^(2))/(sqrt(3)) .where n is an interger. Further , show that smallest value of theta is 30^(@) .