List of top Questions asked in MHT CET- 2026

An ideal transformer converts \(220\)V a.c. to \(3.3\) KV a.c. to transmit a power of \(4.4\) KW. If primary coil has \(600\) turns then alternating current in the secondary coil is

In an a.c. circuit containing L, C and R in series, the ratio of apparent power to the true power is
(Z= impedance of the circuit and R= resistance )

A circular coil of N turns and diameter D carries current I. It is unwound and rewound to make another coil of diameter 2D, current I remaining the same. The ratio of magnetic moments of the original coil to the new coil is

In potentiometer experiment, null point is obtained at a particular point for a cell on potentiometer wire 'x' cm long. If length of potentiometer wire is increased by few cm without changing the cell, the balancing length will (Driving source is not changed)

A source of sound is moving towards a stationary observer with velocity '\(V_S\)' and then moves away with velocity '\(V_S\)'. Assume that medium through which the sound waves travel is at rest. If 'V' is the velocity of sound and 'n' is the frequency emitted by the source then the difference between the apparent frequencies heard by the observer is

If the radius of the spherical Gaussian surface is increased then the electric flux due to a point charge enclosed by the surface

The earth is assumed to be a charged conducting sphere having volume 'V' and surface area 'A'. The capacitance of the earth in free space is (\(ε_0\) = permittivity of free space)

Initially, 'n' identical capacitors are joined in parallel, are charged to potential 'V'. Now they are separated and joined in series. Then

Three parallel plate air capacitors are connected in parallel. Each capacitor has plate area A/3 and separation between the plates is d, 2d and 3d respectively. The equivalent capacity of the combination is (\(ε_0\)-permittivity of free space)

The closed and open organ pipe have same length and when they are vibrating simultaneously in first overtone produce \(3\) beats. The length of open pipe is made \((\frac{1}{3})^{rd}\) and closed pipe is made \(3\) times the original, the number of beats produced will be {neglect end correction}

A mass attached to a spring performs S.H.M. whose displacement is \(x = 3\times 10^{-3}cos2πt\) m. The time taken to obtain maximum speed for the first time is (in s)

A mass \(0.4\) kg performs S.H.M. with a frequency \(\frac{16}{π}\) Hz. At a certain displacement it has kinetic energy \(2\) J and potential energy \(1.2\) J. The amplitude of oscillation is

The equation of a progressive wave is \(Y = 3sin[π(\frac{t}{3}-\frac{x}{5})+\frac{π}{4}]\) where X and Y are in metre and time in second. Which of the following is correct?

An oscillating pendulum suspended from the roof of a lift which is at rest has time period \(T_1\). When lift moves up with acceleration 'a' its time period is \(T_2\). When lift moves down with acceleration 'a' its time period is \(T_3\). The relation between \(T_1\), \(T_2\) and \(T_3\) is

Two uniform wires of same material are vibrating under the same tension. If the first overtone of the first wire is equal to the second overtone of the second wire and radius of first wire is twice the radius of second wire then the ratio of length of first to second wire is

If \(\Delta Q\) is the amount of heat supplied to 'n' moles of a rigid diatomic gas at constant pressure, \(\Delta U\) is the change in internal energy and \(\Delta W\) is the work done then \(\Delta W:\Delta U:\Delta Q\) is

An insulated container contains a monoatomic gas of molar mass 'm'. The container is moving with velocity 'V'. If it is stopped suddenly, the change in temperature of the gas is (R-gas constant)

A body cools in \(7\) minutes from \(60^{\circ}\)C to \(40^{\circ}\)C. What time (in minutes) does it take to cool from \(40^{\circ}\)C to \(28^{\circ}\)C, if its surrounding temperature is \(10^{\circ}\)C ? (Newton's law of cooling holds good)

Carnot engine operating between temperatures \(T_1\) and \(T_2\) has efficiency \(0.2\). When \(T_2\) is lowered by \(45\) K, its efficiency becomes \(0.5\). Temperatures \(T_1\) and \(T_2\) are respectively

For a gas, \(\frac{R}{C_v} = 0.4\) where R is the universal gas constant and \(C_v\) is the molar specific heat at constant volume. The gas is made up of molecules which are

A rigid diatomic gas undergoes adiabatic change. Its pressure P and temperature T are related as \(P\propto T^x\) where x is

Let M and L be the mass and length of thin uniform rod respectively. In first case, axis of rotation is passing through centre and perpendicular to length of rod. In second case axis of rotation is passing through one end and perpendicular to length of rod. The ratio of radius of gyration in first case to second case is

The density of a planet is three times that of earth and radius \(2.5\) times that of earth. If \(g_p\) and \(g_e\) represents acceleration due to gravity on planet and earth respectively then ratio \(g_p\) to \(g_e\) is

The moment of inertia of a ring about an axis passing through its centre and perpendicular to its plane is I. It is rotating with angular velocity \(ω\). Another identical ring is gently placed on it so that their centres coincide. If both rings are rotating about the same axis then loss in kinetic energy is

A liquid drop having surface energy E is sprayed into \(512\) droplets of the same size. Then the final surface energy is