List of top Physics Questions asked in MHT CET

If an electron is revolving around the hydrogen nucleus at a distance of $ 0.1 \,nm $ , what should be its speed ?

To what temperature should the hydrogen at $ 327^{\circ}C $ be cooled at constant pressure, so that the root mean square velocity of its molecules becomes half of its previous value ?

In a satellite, if the time of revolution is $ T $ , then $ KE $ is proportional to

If the linear charge density of a cylinder is $ 4 \,\mu cm^{-1} $ then electric field intensity at point $ 3.6 \,cm $ from axis is

When light wave suffers reflection at the interface between air and glass, the change of phase of reflected wave is equal to

If angle of incidence is twice the angle of refraction in a medium of refractive index $ \mu $ , then angle of incidence is

A ray of light is incident at polarising angle such that its deviation is $ 24^{\circ} $ , then angle of incidence is

A $ 2V $ battery, a $ 990 \, \Omega $ resistor and a potentiometer of $ 2m $ length, all are connected in series of the resistance of potentiometer wire is $ 10 \, \Omega $ , then the potential gradient of the potentiometer wire is

Moment of inertia of big drop is $ I $ . If $ 8 $ droplets are formed from big drop, then moment of inertia of small droplet is

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string at that instant is

A galvanometer of resistance $ 50\,\Omega $ is connected to a battery of $ 3 \,V $ along with a resistance of $ 2950\,\Omega $ in series. A full scale deflection of $ 30 $ divisions is obtained in the galvanometer. In order to reduce this deflection to $ 20 $ divisions, the resistance in series should be

A parallel plate condenser with oil (dielectric constant 2) between the plates has capacitance C. lf oil is removed, the capacitance of capacitor becomes

The graph between the time period and the length of a simple pendulum is

The charge carriers in a $ p $ -type semiconductor are

A wave travelling along a string is described by the equation $ y=A\,sin\,\left(\omega t-kx\right) $ The maximum particle velocity is

The angle between particle velocity and wave velocity in a transverse wave is

A particle having almost zero mass and exactly zero charge is

A $ 20\,mu F $ capacitor is connected to $ 45\,V $ battery through a circuit whose resistance is $ 2000\, \Omega $ . What is the final charge on the capacitor ?

A long spring is stretched by $ 2\,cm $ and its potential energy is $ U $ . If the spring is stretched by $ 10\,cm $ ; its potential energy will be

A change of $8.0 mA$ in the emitter current brings a change of $7.9 mA$ in the collector current. The values of $\alpha$ and $\beta$ are

If $ g $ is the acceleration due to gravity on earth?s surface, the gain of the potential energy of an object of mass $ m $ raised from the surface of the earth to a height equal to the radius $ R $ of the earth is

A hollow sphere is filled with water through the small hole in it. It is then hung by a long thread and made to oscillate. As the water slowly flow out of the hole at the bottom, the period of oscillation will

Which of the following while in motion cannot be deflected by magnetic field ?

The potential energy of a simple harmonic oscillator, when the particle is half way to its end point is (where $ E $ is the total energy)

Two drops of equal radius coalesce to form a bigger drop. What is ratio of surface energy of bigger drop to smaller one ?