List of top Physics Questions asked in MHT CET

Which one of the following statements is ‘NOT’ true about the angle of contact of a liquid?

A hollow cylinder has a charge q coulomb within it. It ϕ is the electric flux associated with the curved surface B, the flux linked with the plane surface A will be

What is change in internal energy if a system gains xJ of heat and yJ work is done on it?

Four identical condensers are connected in parallel and then in series equivalent capacitance in series to that in parallel combination is

The coefficient of linear expansion of brass and steel rod are ‘α₁’ and ‘α₂’ respectively. Lengths of brass and steel rods are ‘l₁’ and‘l₂’ respectively. If (l₂ - l₁) is maintained same at all temperatures, which one of the following relation is correct?

Two spheres ‘S₁’ and ‘S₂’ have same radii but temperatures are ‘T₁’ and ‘T₂’ respectively. Their emissive power is same and emissivity is in the ratio 1 : 4. Then the ratio ‘T₁’ to‘T₂’ is

For a particle performing S.H.M. the equation \(\frac {d^2x}{dt^2}\)+αx=0. Then the time period of the motion will be

In LCR series resonance circuit, choose the wrong statement

In a p-type semiconductor

A condenser of capacity ‘C’ is charged to a potential difference of ‘V₁’. The plates of the condenser are then connected to an ideal inductor of inductance ‘L’. The current through an inductor when the potential difference across the condenser reduces to ‘V₂’ is

Two long parallel wires separated by distance ‘d’ carry currents I₁ and I₂ in the same direction. They exert a force F on each other. Now the current in one of the wire is increased to three times and its direction is made opposite. The distance between the wires is doubled. The magnitude of force between them is

A string is vibrating in its fifth overtone between two rigid supports 2.4 m apart. The distance between successive node and antinode is

Find resistance in a delta shape terminal.

Air column in two identical tubes is vibrating. Tube A has one end closed and tube B has both ends open. Neglecting end correction, the ratio of the fundamental frequency of air column in tube A to that in tube B is

Two satellites A and B rotate round a planet’s orbit having radius 4R and R respectively. If the speed of satellite A is 3 V then speed of satellite B is

Two thin lenses have a combined power of +9D. When they are separated by a distance of 20 cm, then their equivalent power becomes +27/5 D. Their individual power (in dioptre) is

What is intensive property?

A light wave of wavelength ‘λ’ is incident on a slit of width ‘d’. The resulting diffraction pattern is observed on a screen at a distance ‘D’.If linear width of the principal maximum is equal to the width of the slit, then the distance D is

A photon of energy ‘E’ ejects photoelectrons from a metal surface whose work function is W₀. If this electron enters into uniform magnetic field of induction ‘B’ in a direction perpendicular to field and describes a circular path of radius‘r’, then radius is given by

A transistor is used as a common emitter amplifier with a load resistance 2 kΩ. The input resistance is 150 Ω. Base current is changed by 20 μA which results in a change in collector current by 1.5 mA. The voltage gain of the amplifier is