List of top Physics Questions asked in MHT CET

For a thin prism, \(\delta_1\) is the angle of deviation produced, when prism is placed in air. When the prism is immersed in water, the angle of deviation produced is \(\delta_2\). Given \({}_{\text{a}}\mu_{\text{g}} = \frac{3}{2}\) and \({}_{\text{a}}\mu_{\text{w}} = \frac{4}{3}\) . The ratio \(\delta_2 : \delta_1\) is

When three inductors of same inductance '\(L\)' are connected in series and '\(I\)' is the current passing through the circuit. The energy stored in the circuit is

A series LCR circuit is connected to an a.c. source of \(230\text{ V}, 50\text{ Hz}\). The circuit contains resistance of \(80\Omega\), inductive reactance \(70\Omega\) and capacitive reactance \(130\Omega\). The power factor of the circuit is \(x\). The value of \(x\) is

Two conducting circular loops of radii \(R_1\) and \(R_2\) are placed in the same plane with their centres coinciding. If \(R_1>R_2\), the mutual inductance \(M\) between them will be directly proportional to

If '\(\lambda_1\)' and '\(\lambda_2\)' are the wavelengths of the first member of the Balmer and Paschen series, in hydrogen atom respectively, then the ratio of respective frequencies, \(f_1/f_2\) , is

Let '\(W\)' joule be the work done to move an electric charge '\(q\)' coulomb from a place \(A\), where potential is \(-5\text{ volt}\) to another place \(B\) where potential is '\(V\)' volt. The value of '\(V\)' is

Two long parallel wires carrying currents \(4\text{ A}\) and \(3\text{ A}\) in opposite directions are placed at a distance of \(5\text{ cm}\) from each other. A point \(P\) is at equidistance from both the wires such that the line joining the point \(P\) to the wires are perpendicular to each other. The magnitude of magnetic field at point \(P\) is ( \(\mu_0 = 4\pi \times 10^{-7}\) SI unit )

Two rods of different materials have lengths '\(l_1\)' and '\(l_2\)' whose coefficient of linear expansions are '\(\alpha_1\)' and '\(\alpha_2\)' respectively. If the difference between the two lengths is independent of temperature then

Three samples \(X, Y\), and \(Z\) of same gas have equal volumes and temperatures. The volume of each sample is doubled, the process being isothermal for X , adiabatic for Y and isobaric for Z . If the final pressures are equal for the three samples, the ratio of the initial pressures is ( \(\gamma = 3/2\) )

If only \(5%\) of the total current is to be passed through galvanometer of resistance \(\text{G}\) , then the resistance of the shunt will be

The plates of a parallel plate capacitor are separated by a distance '\(d\)' with air as the medium between them. A dielectric slab of dielectric constant 3 is introduced between the plates so as to increase the capacity by \(50%\). The thickness of the dielectric slab is

Four particles each of mass \(M\) are placed at the corners of a square of side \(L\). The radius of gyration of the system about an axis perpendicular to the square and passing through its centre is

The formula for the physical quantity is \(P = \frac{x^3 y}{z^2}\) and the percentage error in the determination of physical quantities \(x, y, z\) are \(0.6%, 3%\) and \(1.3%\) respectively. The percentage error in the measurement of \(P\) is

A mass suspended from a vertical spring performs S.H.M. of period \(0.1\) second. The spring is unstretched at the highest point of suspension. Maximum speed of the mass is (Gravitational acceleration \(g = 10\text{ m/s}^2\))

When source of sound moves towards a stationary observer, the apparent frequency heard by him

The frequency of fourth overtone of a closed pipe is in unison with the fifth overtone of an open pipe. The ratio of length of closed pipe to that of open pipe is

A liquid rises to a height of \(2.4\text{ cm}\) in a glass capillary \(P\). Another glass capillary \(Q\) having diameter \(80%\) of capillary \(P\) is immersed in the same liquid. The rise of liquid in capillary \(Q\) is

The time period of a simple pendulum inside a stationary lift is \(\sqrt{3}\) second. When the lift moves upwards with an acceleration \(g/3\), the time period will be ( \(g =\) acceleration due to gravity)

A stone of mass \(1\text{ kg}\) tied to a light inextensible string of length \(L = \frac{5}{3}\text{ m}\) is rotating in a circular path of radius \(L\) in a vertical plane. If the ratio of maximum tension in the string to the minimum tension in the string is 3 , the speed of the stone at the highest point of the circle is ( \(g =\) acceleration due to gravity)

If \(\vec{F} = (5\hat{i} - 10\hat{j})\) and \(\vec{r} = (4\hat{i} - 3\hat{j})\), then the torque acting on the object will be

Two particles of equal mass '\(m\)' move in a circle of radius '\(r\)' under the action of their mutual gravitational attraction. The speed of each particle will be ( \(\text{G} =\) Universal gravitational constant)