Physics Test - ...

The quantity that does not have mass in its dimension is:

What is the maximum height attained by an object that is projected from the surface of the earth with a velocity that is one-third of the escape velocity? (Radius of the Earth=R)

The expression \(\left[\mathrm{ML}^{-1} \mathrm{T}^{-2}\right]\) does not represent:

If temperature of the gas is increased to three times, then its root mean square velocity become:

The propagation of electromagnetic waves is along the direction of:

A machine gun is mounted on a \(2000 \mathrm{~kg}\) car on a horizontal frictionless surface. At some instant the gun fires bullets of mass \(10 \mathrm{gm}\) with a velocity of \(500 \mathrm{~m} / \mathrm{sec}\) with respect to the car. The number of bullets fired per second is ten. The average thrust on the system is:

A wheel with \(10\) metallic spokes each \(0.5 \mathrm{~m}\) long is rotated with a speed of \(120\) rev/min in a plane normal to the horizontal component of earth's magnetic field \(H_{E}\) at a place. If \(H_{E}=0.4 \mathrm{G}\) at the place, what is the induced emf between the axle and the rim of the wheel? Note that \(1 \mathrm{G}=10^{-4} \mathrm{~T}\).

A uniformly charged conducting sphere of \(2.4\) m diameter has a surface charge density of \(80.0 \mu C / \) m\(^{2}\). What is the total electric flux leaving the surface of the sphere?

What is the ratio of \(\frac{C_{p}}{C_{v}}\) for gas if the pressure of the gas is proportional to the cube of its temperature and the process is an adiabatic process?

A wind-powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into the electric energy. For wind speed V, the electrical power output will be proportional to?