Physics Past Questions and Answers

The value of the series resistor required to convert the above galvanometer into a voltmeter with a full range deflection of 15V is

Two mirrors of the same length are arranged as shown above, a ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through

In a resonance tube experiment, a tube fixed length is closed at one end and several tuning forks of increasing frequency used to obtain resonance at the open end. If the tuning fork with the lowest frequency which gave resonance had a frequency f<sub style='font-size: smaller;'>1</sub> and the next tuning fork to give resonance had a frequency f<sub style='font-size: smaller;'>2</sub>, find the ratio \(\frac{f^2}{f^2}\).

Which of the following is NOT a vector quantity?

Which of the following statements about friction is NOT correct?