List of top Questions asked in MHT CET- 2025

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)

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 Young's double slit experiment, waves from slits ' \(\mathrm{S}_1\) ' and ' \(\mathrm{S}_2\) ' have a path difference of \(\frac{\lambda}{4}\) and \(\frac{\lambda}{6}\) respectively at points \(x\) and \(y\) on the screen. The ratio of intensities at points \(y\) to that at \(x\) is \(\left(\cos 45^{\circ}=\frac{1}{\sqrt{2}}, \cos 30^{\circ}=\sqrt{3} / 2,\right)\)

Out of the following properties describing diamagnetism, identify the property which is "WRONG"

The current \(I\) is flowing through a loop \(A B C D A\) as shown in the figure. The magnitude of the magnetic field at the centre ' \(O\) ' is \(x\) times

\[ \left(\frac{\mu_0 \mathrm{I}}{\mathrm{R}}\right)\left(\mathrm{OD}=\mathrm{R}, \mathrm{DC}=\mathrm{R}, \angle \mathrm{AOD}=90^{\circ}\right) \]

The value of ' \(x\) ' is ( \(\mu_0=\) permeability of free space)

Light propagates 2 cm distance in glass of refractive index 1.5 in certain time. In the same time same light propogates a distance of 2.25 cm in a medium. The refractive index of the medium is

A particle of mass 0.02 kg executes S.H.M. about \(\mathrm{x}=0\) under the influence of a force as shown in figure. The period of S.H.M. is

If the r.m.s. velocity of gas is V at temperature T , then

At what angle should the two forces \(2 \overrightarrow{\mathrm{P}}\) and \(\sqrt{2} \overrightarrow{\mathrm{P}}\) act so that the resultant force is \(\sqrt{10} \overrightarrow{\mathrm{P}}\) ?

In a circuit shown, if \(10 \Omega\) resistor is replaced by \(20 \Omega\), then the current drawn from the battery is

Two bodies with kinetic energies in the ratio \(3: 1\) are moving with equal linear momentum. The ratio of their masses is

The main difference in the working of a step-up transformer and CE amplifier is

A uniform metal wire has length ' \(L\) ', mass ' \(M\) ' and area of cross-section ' A '. It is under tension ' \(T\) ' and ' \(V\) ' is the speed of transverse wave along the wire. The density of the wire is

A cell is balanced against 240 cm and 100 cm of potentiometer wire, respectively, when in open circuit and when short-circuited through a resistance of \(5 \Omega\). The internal resistance of the cell is

A stone is projected at an angle \(60^{\circ}\) to the horizontal. The ratio of kinetic energy of the stone at point of projection to its kinetic energy at highest point of flight will be \(\left(\cos 60^{\circ}=0.5\right)\)

A Carnot engine has an efficiency of \(\frac{1}{6}\). When the temperature of sink is reduced by 62 K , its efficiency is doubled. The temperature of the source is

A charge of \(8 \mu \mathrm{C}\) exists at the centre of the square \(A B C D\). The work done in moving a \(4 \mu C\) point charge from corner A to corner B is (Along side AB )

The loudness and pitch of sound note respectively depend upon

A bucket filled with water is revolved in a vertical circle of radius 10 m and water just not fall down. The time period of revolution will be (acceleration due to gravity \(=10 \mathrm{~m} / \mathrm{s}^2\) )

Two coils having self-inductances \(\mathrm{L}_1=75 \mathrm{mH}\) and \(L_2=48 \mathrm{mH}\) are coupled with each other. If the mutual inductance of the coils is 37.2 mH , then coefficient of coupling will be

When a big drop of water is formed from n small drops of water, the energy loss is 4 E , where E is the energy of the bigger drop. If \(R\) and \(r\) is the radius of the bigger and the smaller drop respectively then number of smaller drops \(n\) is

Monochromatic light of wavelength \(4800 \mathop {\rm{A}}\limits^{\rm{o}}\) falls on slit of width ' \(a\) '. For what value of ' \(a\) ', the first maximum falls at \(30^{\circ} .\left(\sin 30^{\circ}=0.5\right)\)

A physical quantity \(\mathrm{P}=\frac{\mathrm{A}^3 \sqrt{\mathrm{~B}}}{\mathrm{C}^{-4} \mathrm{D}^{3 / 2}}\). Out of the quantities \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and D , the quantity which brings maximum percentage error in P is

Identify P and Q regions in the diagram of histology of alimentary canal and identify the type of tissue.

Which one of the following is NOT a cyanobacterial biofertilizer?