A motor car is fitted with a convex driving mirror of focal length 20 cm. A second motor car 2 m board and 1.6 m high is 6 m away from the first car.
If the second car is overtaking at a relative speed of `14ms^-1`, how fast will the image be moving and in what direction?

A motor car is fitted with a convex driving mirror of focal length 20 cm. A second motor car 2 m board and 1.6 m high is 6 m away from the first car. Calculate the position and size of the image of the second car seen in the mirror of first.

If you sit in a parked car,you glance in the rear view mirror of radius of curvature 2 m and notice a jogger approaching.If the jogger is running at a speed of 5 ms ^(-1) ,how fast is the image of the jogger moving,when the jogger is 9 m away.

If you sit in a parked car,you glance in the rear view mirror of radius of curvature 2 m and notice a jogger approaching.If the jogger is running at a speed of 5 ms ^(-1) ,how fast is the image of the jogger moving,when the jogger is 19 m

If you sit in a parked car,you glance in the rear view mirror of radius of curvature 2 m and notice a jogger approaching.If the jogger is running at a speed of 5 ms ^(-1) ,how fast is the image of the jogger moving,when the jogger is 39 m

If you sit in a parked car,you glance in the rear view mirror of radius of curvature 2 m and notice a jogger approaching.If the jogger is running at a speed of 5 ms ^(-1) ,how fast is the image of the jogger moving,when the jogger is 29 m

A girl of height 90cm cm is walking away from the base of a lamp-post at a speed of 1.2 m/s. If the lamp is 3.6 m above the ground, find the length of her shadow after 4 seconds.

A car is moving at a constant speed of 60kmh^-1 on a straight road. Looking at the rear view mirror, the driver finds that the car following him is at a distance of 100 m and is approaching with a speed of 5 kmh^-1 . In order to keep track of the car in the rear, the driver begins to glance alternatively at the rear and side mirror of his car after every 2 s till the other car overtakes. If the two cars were maintaining thier speed, whihc of the following statement is/are correct?

A car is moving with a speed of 30 m s^(-1) on a cricular path of radius 500 m.Its linear speed is increasing at the rate of 2 m s^(-2) .Find the values of its net acceleration.

A refracting telescope has an objective of focal length 1 m and an eye-piece of focal length 20 cm. A real image of the sun 10 cm in diameter is formed on a screen 24 cm from the eye-piece. What angle does the sun subtend at the objective?