List of top Questions asked in MHT CET- 2025

Which of the following cations is involved in formation of chlorophyll molecule in plants?

An object is released from a distance ' \(r\) ' from the centre of the earth. The velocity of the object at the time of striking the earth will be ( \(R=\) radius of earth, \(r>R, g=\) acceleration due to gravity)

A particle performs S.H.M. with amplitude 'A'. The speed of the particle is \(\left(\frac{1}{3}\right)^{\text {rd }}\) of the maximum speed when its displacement from the mean position is

An open organ pipe and a closed organ pipe have the frequency of their second overtone identical. The ratio of length of closed pipe to that of open pipe is (Neglect end correction)

In the Bohr model of hydrogen atom, out of the following quantities, the principal quantum number is proportional to ( \(\mathrm{R}, \mathrm{V}\) and E represent radius of the orbit, speed of electron and total energy of the electron respectively)

According to Bohr's first postulate the kinetic energy \(\frac{1}{2} m v^2\) of the electron in C.G.S. system is ( \(\mathrm{m}=\) mass of electron, v is its velocity, r is the radius of the stationary orbit around the nucleus with charge Ze )

Two (A and B) pendulums begin to swing simultaneously. The first pendulum (A) makes five oscillations when the other (B) makes three oscillations. The ratio of the lengths of pendulum \(A\) to that of \(B\) is

Two identical photocathodes receive light of frequencies ' \(f 1\) ' and ' \(f_2\) '. The velocity of the photoelectrons of mass ' \(m\) ' emitted are respectively ' \(\mathrm{v}_1\) ' and ' \(\mathrm{v}_2\) '. Then the correct relation is ( \(\mathrm{h}=\) Planck's constant)

The capacitive reactance of a capacitor connected to 50 V d.c. is

The heat required to increase the temperature from 373 K to 573 K at constant volume for ideal monoatomic gas of 2 moles is ( \(R=\) universal gas constant)

The frequency of oscillation of LCR series circuit is ' \(F\) '. The value of capacitance is tripled, then new frequency becomes ' xF '. The value of ' \(x\) ' is

In thermodynamic process, for free expansion, out of the following select the 'WRONG' statement.

A small steel ball of mass ' M ', radius ' R ' and density ' \(\rho\) ' falls with terminal velocity through a tube filled with glycerine of density ' \(\sigma\) '. The viscous force acting on the steel ball is ( \(\mathrm{g}=\) acceleration due to gravity)

An ideal gas in a container of volume 500 cc is at a pressure of \(2 \times 10^5 \mathrm{~N} / \mathrm{m}^2\). The average kinetic energy of each molecule is \(6 \times 10^{-21} \mathrm{~J}\). The number of gas molecules in the container is

Magnetic field at the centre of a circular loop of area ' \(A\) ' is ' \(B\) '. The magnetic moment of the loop is ' \(x B\) '. The value of ' \(x\) ' is ( \(\mu_0=\) permeability of vacuum or free space)

Out of the following graphs, the correct graphical relation for LC parallel resonant circuit at resonance is

If the electric flux entering and leaving an enclosed surface area are ' \(\phi_1\) ' and ' \(\phi_2\) ' respectively, the electric charge inside the surface will be ( \(\varepsilon_0=\) permittivity of free space)

Two solid spheres of same material but of mass ' M ' and ' 8 M ' fall simultaneously through a viscous liquid. Their terminal velocities are respectively ' V ' and ' nV '. The value ' n ' is

An elastic conducting material is stretched into a circular loop. It is placed with its plane perpendicular to uniform magnetic field \(\mathrm{B}=0.6 \mathrm{~T}\). When loop is released, the radius starts shrinking at constant rate \(3 \mathrm{~cm} / \mathrm{s}\). The induced e.m.f. in the loop at an instant when the radius of the loop is 10 cm will be (in mV )

Two bodies A and B have their moments of inertia I and 3I respectively about their axis of rotation. their kinetic energies of rotation are also equal. The ratio of angular momenta of body A to that of body B is

In resistance thermometer, the resistance at \(0^{\circ} \mathrm{C}\) and \(100^{\circ} \mathrm{C}\) are \(6.74 \Omega\) and \(7.74 \Omega\) respectively. The temperature corresponding to \(6.53 \Omega\) resistance is

If 80 J of work is required in moving an electric charge of ' 2 C ' from a point where potential is " -8 V ' to another point where potential is ' \(V\) ' volt, the value of ' \(V\) ' is

Glass has refractive index ' \(n\) ' with respect to air and ' \(\theta\) ' is the critical angle for a ray of light going from glass to air. If a ray of light is incident from air on the glass with angle of incidence ' \(\theta\) ', corresponding angle of refraction is

A transverse wave is moving along a string. The linear density of a vibrating string is \(2 \times 10^{-3} \mathrm{~kg} / \mathrm{m}\). The wave equation is \(y=0.02 \sin (2 x+10 t) m\). The tension in the string is

In photoelectric effect experiment, the stopping potential for a given metal is \(\mathrm{V}_0\) (in volt) when radiation of wavelength \(\lambda_0\) is used. If radiation of wavelength \(5 \lambda_0\) is used with the same metal, then the stopping potential is (in volt) ( \(\mathrm{h}=\) Planck's constant, \(\mathrm{c}=\) velocity of light, \(\mathrm{e}=\) electronic charge)