A ladder has rungs 25 cm apart, (see Figure). The rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top. If the top and the bottom rungs are `2 1/2` m apart, what is the length of the wood required for the rungs?

Given a circle with centre O and radius 2.5 cm, what is the length of the longest chord of the circle

A pencil has a length of 9.2 cm. It is broken into two pieces. If the smaller piece has a length of 4.46 cm, what is the length of the larger piece?

The centres of two circles with radii 6 cm and 2 cm are 10 cm apart. Calculate the length of the transverse common tangent.

The length of a rectangle is 7.1 cm and its breadth is 2.5 cm. Whatis the area of the rectangle?

A ladder leaning against a wall makes an angle of 60° with the horizontal. If the foot of the ladder is 2.5 m away from the wall, find the length of the ladder.

A table-top measures 2 m 25 cm by 1 m 50 cm. What is the perimeter of the table-top?

A plano - convex lens has diameter 5 cm and its thickness at the centre is 0.25 cm . If the speed of light inside the lens is 2xx10^(8)ms^(-1) , then what is the focal length (in cm) of the lens?

A block of wood has a mass of 25g . When a 5g metal piece with a volume of 2cm^(3) is attached to the bottom of the block, the wood barely floats in water. What is the volume V of the wood?

A ladder is placed against a wall such that its foot is at a distance of 2.5 m from the wall and its top reaches a window 6 m above the ground. Find the length of the ladder.

A uniform rope of mass M=0.1kg and length L=10m hangs from the celling. [g=10m//s^(2)] :- (1)speed of transverse wave in the rope increases linearly from top to the bottom. (2)speed of the transverse wave in the rope decreases linearly from bottom to the top. (3)speed of the transverse wave in the rope remain constant along the length of the rope (4)time taken by the transverse wave to travel the full length of the rope is 2 sec.