List of top Questions asked in MHT CET

A mass 'M' is suspended by a rope from a rigid support at point 'P'. Another rope is tied at end 'Q' and pulled horizontally with a force 'F'. If the rope makes an angle $\theta$ with vertical, then the tension in the string 'PQ' is

A black sphere has radius R whose rate of radiation is E at temperature T. If radius is made $R/2$ and temperature $3T$, the rate of radiation will be

The polarising angle of transparent medium is $\theta$. Let the speed of light in the medium be $v$. Then the relation between $\theta$ and $v$ is ($c=$ velocity of light in air)

A long rectangular conducting loop of width $l$, mass $m$ and resistance $R$ is placed partly in a perpendicular magnetic field $B$. It is pushed downwards with velocity $V$ so that it may continue to fall freely. The velocity $V$ is

The depth at which acceleration due to gravity becomes $g/n$ is ($R=$ radius of earth, $g=$ acceleration due to gravity, $n=$ integer)

A particle is performing S.H.M. starting from extreme position. Displacement and acceleration have a phase difference of

A musical instrument P produce sound waves of frequency n and amplitude A. Another musical instrument produces sound waves of frequency $n/4$. The waves produced by P and Q have equal energies. If the amplitude of waves produced by P is $A_{p}$, the amplitude of waves produced by Q will be}

In the following circuit, current through ACB if each resistance $R=4\Omega$ is

The plot of magnetic flux $\phi$ versus current I is shown for two inductors $L_{1}$ and $L_{2}$. The self inductance of}

In a certain 2-inputs logic gate, when $A=0, B=0$, output $C=1$. When $A=0, B=1$, output $C=1$. The gate must be

Two cylinders A and B contain equal amounts of diatomic gas at T K. Piston A is free to move (isobaric), B is fixed (isochoric). If rise in temp of A is $dT_{A}$ for same heat $Q$, rise in B is}

The vector sum of two forces $\vec{A}$ and $\vec{B}$ is perpendicular to their vector difference. Hence forces $\vec{A}$ and $\vec{B}$ are}

Under isothermal conditions, two soap bubbles of radii $r_{1}$ and $r_{2}$ coalesce to form a big bubble. The radius of the big bubble is}

The frequencies for series limit of Balmer and Paschen series are $v_{1}$ and $v_{3}$ respectively. If frequency of first line of Balmer series is $v_{2}$, then the relation is}

An ideal gas taken through process ABCA. If net heat supplied is 5 J, find work done in process $C \to A$.

Two wires of equal lengths are bent in the form of a square and a circular loop. They are suspended in a uniform magnetic field and same current is passed through them. Torque experienced by

When observer moves toward stationary source with $v_1$, apparent frequency is $F_1$. When moving away with $v_1$, it is $F_2$. If $F_1/F_2 = 2$, find $V/v_1$.

In an AC circuit containing L, C, R in series, the ratio of true power to apparent power is

In YDSE, second minimum is observed exactly in front of one slit. The wavelength of light used is

A calorimeter contains 10 g of water at $20^{\circ}C$. The temperature falls to $15^{\circ}C$ in 10 min. When calorimeter contains 20 g of water at $20^{\circ}C$, it takes 15 min. for the temperature to become $15^{\circ}C$. The water equivalent of the calorimeter is}

Let $E_{e}$ and $E_{p}$ represent kinetic energy of electron and photon. If de-Broglie wavelength of photon is twice that of electron, find $E_p/E_e$ (speed of electron $= c/100$)}

Five capacitors, each of capacitance C, are connected as shown. The ratio of equivalent capacitance between P and R ($C_{PR}$) and the equivalent capacitance between P and Q ($C_{PQ}$) is

A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest, its period is 'T'. With what acceleration 'a' should the lift be accelerated upward in order to reduce the period to $T/2$?

A solid sphere at rest rolls down an inclined plane of vertical height h without sliding. Its speed on reaching the bottom of plane is ($g=$ acceleration due to gravity)

Refractive index of a glass convex lens is 1.5. The radius of curvature of each of the two surfaces of the lens is 40 cm. The ratio of the power of the lens when immersed in a liquid of refractive index 1.25 to that when placed in air is