Define frequency of a vibrating body. Write its Sl unit.

Define amplitude of a vibrating body. What is its SI unit?

Fill in the blank space. With the decrease in frequency of a vibrating body its pitch becomes _______ . ( "shrill"//"bass" )

Define the activity of a radionuclide. Write its SI unit. Give a plot of the activity of a radioactive species versus time.

Define the activity of a radionuclide. Write its SI unit. Give a plot of the activity of a radioactive species versus time.

The fundamental frequency of a vibrating organ pipe is 200 Hz.

When frequency of a vibrating object increases, its time period decreases.

Define self-inductance of a coil . Write its S.I. units ?

Define self-inductance of a coil . Write its S.I. units ?

Assertion : Resonance is special case of force vibration in which the nature frequency of vebration of the body is the same as the impressed frequency of external periodic force and the amplitude of force vibration is maximum Reason: The amplitude of forced vibrations of a bodyincrease with an increase in the frequency of the externally impressed perioic force

A string fixed at both ends, is vibrating in a particular mode of vibration. Vibration is such that a point on string is at maximum displacement and it is at a distance of one fourth of length of string from one end. The frequency of vibration in thus mode is 200 Hz . What will be the frequency of vibration when it vibrates in next mode such that the same point is at maximum displacement?