A crowbar of length `120 cm` has its fulcrum situated at a distance of `20 cm` from the load. The mechanical advantage of the crow bar is

The crow bar is a type of lever as shown in the figure. A crow bar of length 150 cm has its fulcrum at a distance of 25 cm from the load: Calculate mechanical advantage of this crow bar.

A crowbar is of 150 cm length. Its fulcrum is at a distance of 50 cm from the load. Find out the mechanical advantage.

Length of a crowbar is 150 cm. Its fulcrum is at a distance of 30 cm from the load. What is its mechanical advantage.

An object is placed at a distance of 30 cm from a concave mirror and its real image is formed at a distance of 30 cm from the mirror. The focal length of the mirror is

A tangent is drawn to a circle of radius 6 cm from a point situated at a distance of 10 cm from the centre of the circle the length of the tangent will be

An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is