Physics Test - ...

If atmospheric pressure is given by 10⁶ dyne/cm², what will be its equivalent value in SI unit?

A car is moving with a constant speed of 10 ms^-1 along a circular path of radius of 10 m in a horizontal plane. A plumb is suspended from the roof of the car by a light rigid rod.  The angle subtended by the rod from the path is:

A moving particle of mass \(\mathrm{m}\), makes a head-on elastic collision with another particle of mass \(2 \mathrm{~m}\), which is initially at rest. The percentage loss in energy of the colliding particle on collision is close to:

In an electromagnetic wave in free space the root mean square value of the electric field is \({E}_{{rms}}=\) \(6 {~V} / {m}\). The peak value of the magnetic field is:

What is the SI unit of surface tension of a fluid?

Which of the following is correct for the broadcast mode of communication?

Two sine waves having unequal amplitudes and a phase difference of \(\frac{\pi}{2}\), are travelling along \(\mathrm{x}\) and \(\mathrm{y}\)-axis respectively. When they superimpose, the resultant wave will be:

A homogeneous solid cylindrical roller of radius R and mass m is pulled on a cricket pitch by a horizontal force. Assuming rolling without slipping, angular acceleration of the cylinder is:

If the forward voltage of the diode is increased, the width of the depletion layer:

The value of Avogadro constant is _________.