Physics
Two waves of the same pitch have their amplitudes in the ratio 2:3.
(a) What will be the ratio of their loudness?
(b) What will be the ratio of their frequencies?
Related Questions
(a) Give two reasons as to why the efficiency of a single removable pulley system is always less than 100%.
(b) Why a thick lead container is required to keep a radioactive substance?
(c) What is the principle of moments?
Three students perform the experiments on series and parallel combinations of two given resistors R1 and R2 and the following V-I graphs were obtained.
Which of the graphs is/are correctly formed? Justify your answer.
(a) What is meant by potential energy of body?
(b) State whether the potential energy will be maximum or minimum at the surface of earth.
A uniform half metre rule balances horizontally on a knife edge at 29 cm mark when a weight of 20 gf is suspended from one end.
(i) Draw a diagram of the arrangement.
(ii) What is the weight of the half metre rule?