List of top Physics Questions asked in MHT CET

In the following network, the current flowing through 15 $\Omega$ resistance is
Two light waves of intensities $'I_1'$ and $'I_2'$ having same frequency pass through same medium at a time in same direction and interfere. The sum of the minimum and maximum intensities is
A mass attached to one end of a string crosses top-most point on a vertical circle with critical speed. Its centripetal acceleration when string becomes horizontal will be (g = gravitational acceleration)
A disc has mass 'M' and radius 'R' . How much tangential force should be applied to the rim of the disc so as to rotate with angular velocity $'\omega '$ in time 't' ?
An alternating voltage $e = 200 \sqrt{2} \, \sin(100 \, t)$ volt is connected to $1\, \mu F$ capacitor through AC ammeter. The reading of ammeter is
A circular coil carrying current 'I' has radius 'R' and magnetic field at the centre is 'B' . At what distance from the centre along the axis of the same coil, the magnetic field will be $\frac{B}{8}$ ?
A sphere of mass 'm' moving with velocity 'v' collides head-on on another sphere of same mass which is at rest. The ratio of final velocity of second sphere to the initial velocity of the first sphere is (e is coefficient of restitution and collision is inelastic)
The angle made by incident ray of light with the reflecting surface is called
The ratio of magnetic fields due to a bar magnet at the two axial points $P_1$ and $P_2$ which are separated from each other by $10 \,cm$ is 25 : 2. Point $P_1$ is situated at 10 cm from the centre of the magnet. Magnetic length of the bar magnet is (Points $P_1$ and $P_2$ are on the same side of magnet and distance of $P_2$ from the centre is greater than distance of $P_1$ from the centre of magnet)
The expression for electric field intensity at a point outside uniformly charged thin plane sheet is (d is the distance of point from plane sheet)
The increase in energy of a metal bar of length 'L' and cross-sectional area 'A' when compressed with a load 'M' along its length is (Y = Young�s modulus of the material of metal bar)
Two moles of an ideal gas are allowed to expand from a volume of $10 \, dm^3$ to $ 2m^3$ at 300 K against a pressure of 101.325 KPa. Calculate the work done.
If numerical aperture of a microscope is increased then its
A metal wire of density $'\rho'$ floats on water surface horizontally. If it is NOT to sink in water then maximum radius of wire is proportional to (T = surface tension of water, g = gravitational acceleration)
A square frame $ABCD$ is formed by four identical rods each of mass 'm' and length 'l' This frame is in $XY$ -plane such that side $AB$ coincides with $X$-axis and side $AD$ along $Y$-axis. The moment of inertia of the frame about $X$-axis is
For a particle performing linear S.H.M., its average speed over one oscillation is (a = amplitude of S.H.M., n = frequency of oscillation)
A ceiling fan rotates about its own axis with some angular velocity. When the fan is switched off, the angular velocity becomes $(\frac{1}{4})^{th}$ of the original in time ?t? and ?n? revolutions are made in that lime. The number of revolutions made by the fan during the time interval between switch off and rest are (Angular retardation is uniform)
A flywheel at rest is to reach an angular velocity of 24 rad/s in 8 second with constant angular acceleration. The total angle turned through during this interval is
Photodiode is a device
The observer is moving with velocity $v_0$ towards the stationary source of sound and then after crossing moves away from the source with velocity $v_0$. Assume that the medium through which the sound waves travel is at rest. If $V$ is the velocity of sound and $n$ is the frequency emitted by the source then the difference between apparent frequencies heard by the observer is
The magnetic moment of electron due to orbital motion is proportional to (n = principal quantum number)
A metal rod of length ????and cross-sectional area ????is heated through $???? \, {^{\circ}C}$. What is the force required to prevent the expansion of the rod lengthwise ? [Y = Young's modulus of the material of rod , $\alpha$ = coefficient of linear expansion]
A lift of mass $m$ is connected to a rope which is moving upward with maximum acceleration $a$. For maximum safe stress, the elastic limit of the rope, is $T$. The minimum diameter of the rope is (g = gravitational acceleration)
A particle performs linear $S.H.M.$ At a particular instant, velocity of the particle is $u$ and acceleration is $\alpha$ while at another instant velocity is $v$ and acceleration is $ \beta (0 < \alpha < \beta )$. The distance between the two positions is
A solid sphere of mass 2 kg is rolling on a frictionless horizontal surface with velocity 6 m/s. It collides on the free end of an ideal spring whose other end is fixed. The maximum compression produced in the spring will be (Force constant of the spring = 36 N/m).