Physics Past Questions and Answers

If in a simple pendulum experiment the length of the inextensible string is increased by a factor of four, its period is increased by a factor of

In what range of temperature is the expansion of water anomalous?

When the vapour of a substance is in equilibrium with its own liquid, it is said to be

If the wavelength of a wave travelling with a velocity of 360ms-1 is 60m, the period of the wave is

The heights of the mercury thread in a mercury-in-glass thermometer when in melting ice and then in steam are 3cm and 18cm respectively. At a temperature of 60<sup style='font-size: smaller;'>o</sup>C the height would be