List of top Questions asked in MHT CET- 2023

Water is flowing through a horizontal pipe in stream line flow. At the narrowest part of the pipe
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
A body falls on a surface of coefficient of restitution 0.6 from a height of 1 m. Then the body rebounds to a height of
A beam of unpolarized light passes through a tourmaline crystal A and then it passes through a second tourmaline crystal B oriented so that its principal plane is parallel to that of A. The intensity of emergent light is $I_0$. Now B is rotated by $45^\circ$ about the ray. The emergent light will have intensity $(\cos 45^\circ = \frac{1}{\sqrt{2)$
The coil of an a.c. generator has 100 turns, each of cross-sectional area $2 \text{ m}^2$. It is rotating at constant angular speed $30 \text{ rad/s}$, in a uniform magnetic field of $2\times10^{-2}\text{ T}$. If the total resistance of the circuit is 600 $\Omega$ then maximum power dissipated in the circuit is
In a diffraction pattern due to single slit of width 'a', the first minimum is observed at an angle of 30° when the light of wavelength $5400\text{ \AA}$ is incident on the slit. The first secondary maximum is observed at an angle of ($\sin 30^\circ = \frac{1}{2}$)
The materials suitable for making electromagnets should have
A stone is projected vertically upwards with speed 'v'. Another stone of same mass is projected at an angle of $60^\circ$ with the vertical with the same speed 'v'. The ratio of their potential energies at the highest points of their journey is [$\sin 30^\circ = \cos 60^\circ = 0.5$, $\cos 30^\circ = \sin 60^\circ = \frac{\sqrt{3{2}$]
A 5.0 V stabilized power supply is required to be designed using a 12 V DC power supply as input source. The maximum power rating of zener diode is 2.0 W. The minimum value of resistance $R_s$ in $\Omega$ connected in series with zener diode will be
The magnetic flux through a loop of resistance 10 $\Omega$ varying according to the relation $\phi=6t^{2}+7t+1$, where $\phi$ is in milliweber, time is in second at time t=1 s the induced e.m.f. is
A jar 'P' is filled with gas having pressure, volume and temperature P, V, T respectively. Another gas jar Q filled with a gas having pressure 2P, volume $\frac{V}{4}$ and temperature 2T. The ratio of the number of molecules in jar P to those in jar Q is
A thin rod of length 'L' is bent in the form of a circle. Its mass is 'M'. What force will act on mass 'm' placed at the centre of this circle? (G = constant of gravitation)
The ratio of wavelengths for transition of electrons from 2nd orbit to $1^{st}$ orbit of Helium $(He^{+})$ and Lithium $(Li^{++})$ is (Atomic number of Helium = 2, Atomic number of Lithium = 3)
For an intrinsic semiconductor ($n_h$ and $n_e$ are the number of holes per unit volume and number of electrons per unit volume respectively)
Identify the reagent A in the following conversion.
Alkyl halide $\rightarrow$ Alkyl nitrite
Identify the product A obtained in the following reaction.
Phenol + Conc. Nitric acid $\xrightarrow{\text{Conc. } H_2SO_4}$ A
What is the value of specific rotation exhibited by glucose molecule?
A rubber ball filled with water, having a small hole is used as the bob of a simple pendulum. The time period of such a pendulum
What type of information is collected using scanning electron microscopy?
Identify the element having general electronic configuration $ns^{2}np^{4}$ from following.
Which of the following concentration terms depends on temperature?
Identify homopolymer from following.
What is the mass in gram of 1 atom of an element if its atomic mass is 10 u?
Solubility of a salt $A_{2}B_{3}$ is $1\times10^{-3}\text{ mol dm}^{-3}$. What is the value of its solubility product?
What type of reaction is the formation of aldol from aldehyde?