What is vibration magnetometer?

What is free vibration ?

State the uses of Vibration Magnetometer.

State the principle of working of Vibration Magnetometer.

Answer the following questions: What is vibration? Give one example.

What is forced vibration ?

A magnet makes 30 vibrations per minute at a place, where horizontal component of earth's field is 0.18G. At another place if it takes 1.6s to complete one vibration. What is the value of horizontal component of earth s field there? What is the magnetic moment if its moment of inertia is 10^-5 kg m^2 ?

Answer the following in one sentence : What is meant by vibration ?

A string is stretched within two rigid ends. It is vibrated in a node of first overtone. Which of the following is formed at a middle point of a string ?