Physics Past Questions and Answers

Which of the following instruments may be used to measure relative humidity?

A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in air is 330ms\(^{-1}\), the period of vibration in air is?

The slope of the straight line displacement-time graph indicates?

A man will exert the greatest pressure when he?

Which of the units of the following physical quantities are derived?<br/>I. Area<br/>II. Thrust<br/>III. Pressure<br/>IV. Mass