MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions

A particle is moving in a radius R with constant speed v. The magnitude of average acceleration after half revolution is ____________.

Another name for thermal energy is ______

Two identical masses are connected to a horizontal thin (massless) rod as shown in the figure. When their distance from the pivot is D, a torque τ produces an angular acceleration of α₁. The masses are now repositioned so that they are 2D from the pivot. The same torque produces an angular acceleration α₂ which is given by ______

The figure shows a network of currents. The magnitude of currents is shown here. The current I will be ______

A wheel is subjected to uniform angular acceleration about its axis. The wheel is starting from rest and it rotates through an angle θ_1, in first two seconds. In the next two seconds, it rotates through an angle θ₂. The ratio θ₁/θ₂ is ____________.

A carrier wave of peak voltage 16 V is used to transmit a signal. If the modulation index is 75%, the peak voltage of the modulating signal is ______.

A child starts running from rest along a circular track of radius r with constant tangential acceleration a. After time the feels that slipping of shoes on the ground has started. The coefficient of friction between shoes and the ground is [g = acceleration due to gravity].

The escape velocity of a body from any planet, whose mass is six times the mass of earth and radius is twice the radius of earth will be
(v₈ = escape velocity of a body from the earth's surface).

A rope is wound around a solid cylinder of mass 1 kg and radius 0.4 m. What is the angular acceleration of cylinder, if the rope is pulled with a force of 25 N? (Cylinder is rotating about its own axis.)

A body is moving along a circular track of radius 100 m with velocity 20 m/s. Its tangential acceleration is 3 m/s², then its resultant acceleration will be ______.

A particle executes the simple harmonic motion with an amplitude 'A'. The distance travelled by it in one periodic time is ______.

Kirchhoff's junction rule is a reflection of ____________.

The magnitude and direction of the current in the circuit shown will be ______

The real force 'F' acting on a particle of mass ' m' performing circular motion acts along the radius of circle 'r' and is directed towards the centre of circle. The square root of the magnitude of such force is (T = periodic time).

The instantaneous magnetic flux in a circuit is  `phi=4t^2-4t+1`. The total resistance of circuit is 15 Ω. At t = 2s, the induced current in circuit is ____________.

The centripetal force of a body moving in a circular path, if speed is made half and radius is made four times the original value, will ____________.

In the given circuit, the emf 'E' of the cell is ______.

An electron moves on a straight line path XY as shown. The abed is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?

The electrical resistance of depletion layer is large because ____________.

The equation of state for 2g of oxygen at a pressure 'P' and temperature 'T', when occupying a volume 'V' will be ______.