A light of energy 5eV falls on a metal and the electrons with a maximum kinetic energy of 2eV are ejected. The work function of the metal is

The figure above shows two similar bulbs X and Y connected to suitable power supply with F as an appropriate fuse rating, if the filament of X breaks then the

The acceleration of the system show above is

The value of T in the figure above is

The half-life of a radio-active element is 9 days, what fraction of atoms has decayed in 36 days?

The resultant capacitance in the figure above is

In the above fig, PQ and R are vectors, which of the following options, gives a correct relationship between the vectors

An alternating source is connected in series to a capacitor of capacity reactance \(10^3\sqrt{3}\) and a resistor of resistance \(10^3\) Ohms. The Impedance ...

A body of mass 40kg is being dragged along the floor by a rope inclined at 60 degrees to the horizontal. The frictional force between the box and the floor i...