List of top Physics Questions asked in MHT CET

A U tube with limbs of diameters 5 mm and 2 mm contains water of surface tension \( 7 \times 10^{-2} \, \text{N/m} \), angle of contact is zero and density \( 10^3 \, \text{kg/m}^3 \). The difference in the level in the two limbs is \( (g = 10 \, \text{m/s}^2) \)
Find the intensity of magnetization of a magnet with moment \( 4 \, \text{Am}^2 \) which weighs 50 grams. (Density of the material of a magnet = 5000 kg/m\(^3\))
In hydrogen atom, the product of the angular momentum and the linear momentum of the electron is proportional to \( (n = \) principal quantum number)
In a parallelogram shown below, \( a^2 + b^2 = ? \)
A wire of length \( L \), mass \( M \), density \( \rho \), radius \( R \) is stretched by a certain load. If \( r \) and \( \ell \) are the changes in radius and length respectively, then Poisson's ratio is
For a prism, \( A \) is the angle of the prism, \( \delta \) is the angle of deviation, \( \mu \) is the refractive index of the material of a prism, the refractivity of the material of a prism is
A satellite is revolving in a circular orbit around the earth with total energy \( E \). Its potential energy in that orbit is
A transistor is used as a common emitter amplifier with a load resistance of 2 k\(\Omega\). The input resistance is 150 \(\Omega\). Base current is changed by 20 \(\mu A\), which results in a change in collector current by 1.5 mA. The amplified voltage gain of the amplifier is
A block of mass \( M \) is pushed momentarily on a horizontal surface with initial velocity \( V \). If \( \mu \) is the coefficient of sliding friction between the block and surface, the block will come to rest after time \( t \) (where \( g \) is the acceleration due to gravity)
Two unknown resistances are connected in two gaps of a meter bridge. The null point is obtained at 40 cm from the left end. A 30 \(\Omega\) resistance is connected in series with the smaller of the two resistances, the null point shifts by 20 cm to the right end. The value of the smaller resistance is
In photoelectric emission, the intensity of incident light is reduced then stopping potential
Two wires of the same length and material are used to form a square loop and a circular loop respectively. If the same current is passed through both loops, then the ratio of the magnetic moment of the square loop to that of the circular loop is
Earth is assumed to be a sphere of radius \( R \) and uniform density. The variation of acceleration due to gravity (g) according to the depth and the height (h) from the Earth's surface is shown correctly by the graph
An ammeter is obtained by shunting an \( n \, \Omega \) galvanometer with \( n \, \Omega \) resistance. The additional shunt required to be connected across it to double the range is
Capacity of a parallel plate air condenser is 2 μF and voltage between the plates is changing at the rate of 3 V/s. The displacement current in the capacitor is
A uniform rod of length \( 2L \) has constant mass per unit length \( m \). The moment of inertia of the rod about an axis passing through its center and perpendicular to its length is
Out of the following graphs, which graph shows the correct relation for an LC parallel resonant circuit?
The two waves are represented by \( Y_1 = 10^{-2} \sin \left[ 50t + \frac{x}{25} + 0.3 \right] \, \text{m} \) and \( Y_2 = 10^{-2} \cos \left[ 50t + \frac{x}{25} \right] \, \text{m} \), where \( x \) is in metre and time in second. The phase difference between the two waves is nearly
The focal length of the objective used in compound microscope and telescope is respectively
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 \( t \)?
A sphere of mass \( M \) is attached to one end of a metal wire having length \( L \) and diameter \( D \). It is whirled in a vertical circle of radius \( R \) with angular velocity \( \omega \). When the sphere is at the lowest point of its path, the elongation of the wire is
A particle moves along a circular path of radius \( r \) with uniform speed \( V \). The angle described by the particle in one second is
The dimensions of magnetic intensity are
Which one of the following combination of constants has dimensions of time?
[$G$ = constant of gravitation, $h$ = Planck's constant, $c$ = velocity of light]
Three vectors $\vec{A}$, $\vec{B}$ and $\vec{C}$ are such that $\vec{A}\cdot\vec{B} = \vec{A}\cdot\vec{C} = 0$, then $\vec{A}$ is parallel to
$\left[\cos 90^\circ = 0\right]$