The period of a simple pendulum of length 80.0cm was found to have doubled when the length of the pendulum was increased by X. Calculate X.

In which of the following states of matter do the molecules vibrate about their mean positions?

Which of the following properties of a steel bar can be measured in terms of the dimension of length only?

A moving body accelerates when it

In a hydraulic press, a force of 40N is applied to the smaller priston of area 10cm2. If the area of the larger piston is 200cm2, calculate the force obtained

A body of volume 0.046m3 is immersed in a liquid of density 980kgm-3 with \(\frac{3}{4}\) of its volume submerged. Calculate the upthrust on the body. [g = 1...

A body moving in a circle at constant speed has i. a velocity tangent to the circle ii. a constant kinetic energy ii. an acceleration directed towards the ci...

Which of the following types of types of motion will be produced when a pair of equal and opposite non-collinear parallel forces acts on a body?

The following properties of a solid are measured on earth i. weight ii. specific heat capacity iii. density. Which of the properties will hav a different val...