Physics Past Questions and Answers

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^oC the height would be

An object is placed 30cm from a concave mirror of focal length 15cm. the linear magnification of the image produced is

If a given mass at constant pressure obeys the relation...volume is proportional to the absolute temperature...the gas is said to obey

A man standing between two parallel mirrors in a barber's shop will see the following number of his own image