Physics Test - ...

Total internal reflection takes place

The dimensional formula of couple

The escape velocity for Earth is v_e. The escape velocity for a planet whose radius is four times and density is nine times that of Earth is

In electromagnetic induction, the induced charge does not depend on –

A bar magnet used in a vibration magnetometer is heated, so as to reduce its magnetic moment by 36%. The time period of the magnet (neglecting the changes in the dimension of the magnet) :

A vertical spring with force constant 'k' is fixed on a table. A ball of mass 'm' at a height 'h' above the free upper end of the spring falls vertically on the spring, so that the spring is compressed by a distance 'd'. The net work done in the process is

______________ is a thermodynamic process in which heat is not transferred into and out of a system or is typically obtained with strong insulating materials around the entire system.

Which of the following quantities is used to determine the strength of the Earth's magnetic field at a point on the Earth's surface?
(I) magnetic damping
(II) Dip

A magnet makes 30 oscillations/min in Earth's magnetic field. If the magnetic field is doubled, the period of oscillation of magnet is

Which of the following is the most elastic?