Advertisements
Advertisements
Which of the following is not a property of light?
Concept: undefined >> undefined
Gases exert pressure on the walls of the container because the gas molecules ______
Concept: undefined >> undefined
Advertisements
The force acting on a particle of charge q moving in a uniform magnetic field with velocity 'v' is ______
Concept: undefined >> undefined
According to Gauss' theorem, the electric field of an infinitely long straight wire is proportional to ______
Concept: undefined >> undefined
A ray of light is incident at an angle ion one face of prism of small angle A and emerges normally from the other surface. µ is the refractive index of the material of the prism. The angle of incidence is _____________.
Concept: undefined >> undefined
A particle is moving in a radius R with constant speed v. The magnitude of average acceleration after half revolution is ____________.
Concept: undefined >> undefined
Another name for thermal energy is ______
Concept: undefined >> undefined
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 ______
Concept: undefined >> undefined
The figure shows a network of currents. The magnitude of currents is shown here. The current I will be ______
Concept: undefined >> undefined
A wheel is subjected to uniform angular acceleration about its axis. The wheel is starting from rest and it rotates through an angle θ1, in first two seconds. In the next two seconds, it rotates through an angle θ2. The ratio θ1/θ2 is ____________.
Concept: undefined >> undefined
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 ______.
Concept: undefined >> undefined
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].
Concept: undefined >> undefined
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).
Concept: undefined >> undefined
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.)
Concept: undefined >> undefined
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 ______.
Concept: undefined >> undefined
A particle executes the simple harmonic motion with an amplitude 'A'. The distance travelled by it in one periodic time is ______.
Concept: undefined >> undefined
Kirchhoff's junction rule is a reflection of ____________.
Concept: undefined >> undefined
The magnitude and direction of the current in the circuit shown will be ______
Concept: undefined >> undefined
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).
Concept: undefined >> undefined
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 ____________.
Concept: undefined >> undefined
