List of top Physics Questions asked in MHT CET

Earth revolves round the sun in a circular orbit of radius \(R\). The angular momentum of the revolving earth is directly proportional to
If \(N\) is the number of turns in a circular coil, the value of its self-inductance varies as
At what temperature is the R.M.S. velocity of a hydrogen molecule equal to that of an oxygen molecule at \(47^\circ\text{C}\)? (Molecular weight of hydrogen = 2, molecular weight of oxygen = 32)
In Young’s double slit experiment, the 6th maximum with wavelength \( \lambda_1 \) is at a distance \( d_1 \) from the central maximum and the 4th maximum with wavelength \( \lambda_2 \) is at distance \( d_2 \). Then \( \dfrac{d_1}{d_2} \) is
If \(E\), \(M\), \(L\) and \(G\) denote energy, mass, angular momentum and constant of gravitation respectively, then the quantity \( \left(\dfrac{EL^2}{G^2M^5}\right) \) has dimensions of
When an electron in a hydrogen atom jumps from the third orbit to the second orbit, it emits a photon of wavelength \( \lambda \). When it jumps from the fourth orbit to the third orbit, the wavelength emitted by the photon will be
In the following network, \(I_1=-0.4\,\text{A}\), \(I_4=1\,\text{A}\) and \(I_5=0.4\,\text{A}\). The values of \(I_2\), \(I_3\) and \(I_6\) respectively are
A circular coil of radius \(R\) carries an electric current \(I\). The magnetic field due to the coil at a point on the axis of the coil located at a distance \(r\) from the centre of the coil, such that \(r \gg R\), the magnetic field at that point is proportional to
An electron accelerated through potential difference \(V\) passes through a uniform transverse magnetic field and experiences a force \(F\). If the accelerating potential is increased to \(2V\), the electron in the same magnetic field will experience a force
The length of a potentiometer wire is \(L\). A cell of e.m.f. \(E\) is balanced at a length \( \frac{L}{5} \) from the positive end of the wire. If the length of the wire is increased by \( \frac{L}{2} \), at what distance will the same cell give a balance point?
A glass slab of thickness \(4\,\text{cm}\) contains the same number of waves as in \(x\,\text{cm}\) of water column when both are traversed by the same monochromatic light. If the refractive indices of glass and water for that light are \( \frac{5}{3} \) and \( \frac{4}{3} \) respectively, the value of \(x\) will be
\( \vec{A} \) and \( \vec{B} \) are two non-zero vectors inclined at an angle \( \theta \). \( \hat{a} \) and \( \hat{b} \) are unit vectors along \( \vec{A} \) and \( \vec{B} \) respectively. The component of \( \vec{A} \) in the direction of \( \vec{B} \) is
A toroidal solenoid with air core has an average radius \(R\), number of turns \(N\) and area of cross-section \(A\). The self-inductance of the solenoid is (Neglect the field variation across the cross-section of the toroid)
Binding energy of a revolving satellite at height \(h\) is \(3.5\times10^8\,\text{J}\). Its potential energy is
Two springs of spring constants \(K\) and \(2K\) are stretched by the same force. If \(W_1\) and \(W_2\) are the energies stored in them respectively, then
A particle performs S.H.M. with amplitude \( A \). Its speed is tripled at the instant when it is at a distance of \( \frac{2A}{3} \) from the mean position. The new amplitude of the motion is
A Fraunhofer diffraction pattern due to a single slit of width \(0.3\,\text{mm}\) is obtained on a screen placed at a distance of \(3\,\text{m}\) from the slit. The first minima lie at \(5.5\,\text{mm}\) on either side of the central maximum on the screen. The wavelength of light used is
The non-zero potential difference across diode \(D_1\) and that across diode \(D_2\) are equal in the circuit shown in the figure (both diodes are identical in characteristics)
If \( \vec{A} = 3\hat{i} - 2\hat{j} + \hat{k} \), \( \vec{B} = \hat{i} - 3\hat{j} + 5\hat{k} \) and \( \vec{C} = 2\hat{i} + \hat{j} - 4\hat{k} \) form a right angled triangle, then out of the following which one is satisfied?
One end of thick horizontal copper wire of length \(2L\) and radius \(2R\) is welded to the end of another thin horizontal copper wire of length \(L\) and radius \(R\). When they are stretched by applying the same force at the two ends, the ratio of the elongation in the thick wire to that in the thin wire is
A donor impurity results in
A mass \( m \) is tied to one end of a spring and whirled in a horizontal circle with constant angular velocity. The elongation in the spring is 1 cm. If the angular speed is doubled, the elongation in the spring is 6 cm. The original length of the spring is

In non-uniform circular motion, the ratio of tangential to radial acceleration is 
\(\textit{(r = radius, \( \alpha \) = angular acceleration, V = linear velocity)}\)

A body of mass 2 kg is acted upon by two forces, each of magnitude 1 N and inclined at \( 60^\circ \) with each other. The acceleration of the body in \( \text{m/s}^2 \) is 
\(\textit{(cos 60° = 0.5)}\)

A simple pendulum of length \( L \) has mass \( m \) and it oscillates freely with amplitude \( A \). At extreme position, its potential energy is 
\(\textit{(g = acceleration due to gravity)}\)