List of top Questions asked in MHT CET- 2023

The ratio of potential difference that must be applied across parallel and series combination of two capacitors $C_{1}$ and $C_{2}$ with their capacitance in the ratio 1: 2 so that energy stored in these two cases becomes same is
According to kinetic theory of gases, which one of the following statements is wrong?
The potential energy of charged parallel plate capacitor is $v_{0}$. If a slab of dielectric constant K is inserted between the plates, then the new potential energy will be
The rays of different colours fail to converge at a point after passing through a thick converging lens. This defect is called
In a thermodynamic process, there is no exchange of heat between the system and surroundings. Then the thermodynamic process is
The excess of pressure in a first soap bubble is three times that of other soap bubble. Then the ratio of the volume of first bubble to other is
In a meter bridge experiment null point is obtained at $l$ cm from the left end. If the meter bridge wire is replaced by a wire of same material but twice the area of across-section, then the null point is obtained at a distance
In a single slit experiment, the width of the slit is doubled. Which one of the following statements is correct?
A gas at N.T.P. is suddenly compressed to $(\frac{1}{4})^{th}$ of its original volume. The final pressure in atmosphere is (Given $\gamma = \frac{3}{2}$ and $P = $ original pressure)
A long straight wire carrying a current of 25 A rests on the table. Another wire PQ of length 1 m and mass 2.5 g carries the same current but in the opposite direction. To what height ($h$) will wire PQ rise? ($\mu_0 = 4\pi \times 10^{-7}$ SI unit)}
Self inductance of solenoid is
A galvanometer of resistance G is shunted with a resistance of 10% of G. The part of the total current that flows through the galvanometer is
If an electron in a hydrogen atom jumps from an orbit of level $n=3$ to orbit of level $n=2$, then the emitted radiation frequency is (where $R=$ Rydberg's constant, $C=$ Velocity of light)
The capacitance of a parallel plate capacitor is 2.5 µF. When it is half filled with a dielectric as shown in figure, its capacitance becomes 5 μF. The dielectric constant of the dielectric is
Two uniform brass rods A and B of length 'l' and '2l' and their radii '2r' and 'r' respectively are heated to same temperature. The ratio of the increase in the volume of rod A to that of rod B is
For a gas having $X$ degrees of freedom, $\gamma$ is
A conducting wire of length 2500 m is kept in east-west direction, at a height of 10 m from the ground. If it falls freely on the ground then the current induced in the wire is (Resistance of wire $= 25\sqrt{2} \;\Omega$, acceleration due to gravity $g=10\text{ m/s}^2$, $B_H=2\times10^{-5}\text{ T}$)
A body weighs 300 N on the surface of the earth. How much will it weigh at a distance $\frac{R}{2}$ below the surface of earth? ($R \rightarrow$ Radius of earth)
A square lamina of side 'b' has same mass as a disc of radius 'R'. The moment of inertia of the two objects about an axis perpendicular to the plane and passing through the centre is equal. The ratio $\frac{b}{R}$ is
For an electron moving in the $n^{th}$ Bohr orbit the de-Broglie wavelength of an electron is
To get the truth table shown, from the following logic circuit, the Gate G should be }
A capacitor, an inductor and an electric bulb are connected in series to an a.c. supply of variable frequency. As the frequency of the supply is increased gradually, then the electric bulb is found to
An electron (mass m) is accelerated through a potential difference of 'V' and then it enters in a magnetic field of induction 'B' normal to the lines. The radius of the circular path is (e = electronic charge)
Water is flowing through a horizontal pipe in stream line flow. At the narrowest part of the pipe
When both source and listener are approaching each other the observed frequency of sound is given by ($V_L$ and $V_S$ is the velocity of listener and source respectively, $n_0 = \text{radiated frequency}$)