List of top Physics Questions asked in MHT CET

The moment of inertia of a uniform circular disc of radius $ R $ and mass $ M $ about an axis touching the disc at its diameter and normal to the disc is

Sound waves are not transmitted a long distance because

Which of the following phenomenon exhibits particle's nature of light ?

In a Fresnel biprism experiment, the two positions of lens give separation between the slits as 16 cm and 9 cm, respectively. What is the actual distance of separation?

Two particles execute SHM of the same amplitude and frequency along the same straight line. If they pass one another when going in opposite directions, each time their displacement is half their amplitude, the phase difference between them is

Which of the following generates a plane wavefront ?

Two strings with mass per unit length of $25 \, g \, cm^{-1}$ and $9 \, gcm^{-1}$ are joined together in series. The reflection coefficient for the vibration waves are

Newton's law of cooling holds good only, if the temperature difference between the body and the surroundings is

A pendulum bob carriers a negative charge - A positive charge +q is held at the point of support. Then, the time period of the bob is

The increase in pressure required to decrease the 200 L volume of a liquid by 0.004% (in kPa) is (Bulk modulus of the liquid = 2100 MPa)

An electric fan has blades of length 30 cm as measured from the axis of rotation. If the fan is rotating at 1200 rpm, the acceleration of a point on the tip of the blade is about

Two short magnets have equal pole strengths but one is twice as long as the other. The shorter magnet is placed 20 cm in tan A position from the compass needle. The longer magnet must be placed on the other side of the magnetometer for no deflection at a distance equal to

A rectangular block is 5 cm $\times$ 5 cm $\times$ 10 cm in size. The block is floating in water with 5 cm side vertical. If it floats with 10 cm side vertical, what change will occure in the level of water?

There is no change in the volume of a wire due to change in its length on stretching. The Poisson's ratio of the material of the wire is

ln an AC circuit, the current lags behind the voltage by $\pi$/3. The components of the circuit are

An engineer claims to have made an engine delivering 10 kW power with fuel consumption of $1\,gs^{-1}$. The calorific value of fuel is 2 $kcalg^{-1}$. This claim is

In series L-C-R circuit, the capacitance is changed from C to 2C. The inductance should be changed from L to ... to obtain same resonance frequency.

By keeping moment of inertia of a body constant, if we double the time period, then angular momentum of body

The path difference produced by two waves is 3.75 $\mu$m and the wavelength is 5000 $\mathring {A}$. The point is

The simple pendulum acts as second's pendulum on earth. Its time on a planet, whose mass and diameter are twice that of earth is

The energy stored per unit volume in copper wire, which produces longitudinal strain of 0.1% is $(Y =1.1\times10^3 Nm^{-2})$

An electron projected in a perpendicular uniform magnetic field of $3 \times 10^{-3} T, $ moves in a circle of radius 4 mm. The linear momentum of electron $(in \, kg-ms^{-1}) $ is

Consider a short magnetic dipole of magnetic length 10 cm. Its geometric length is

The binding energy of a satellite of mass m in a orbit of radius r is (R = radius of earth, g = acceleration due to gravity)