Physics

    Kinematics
    A bus starts from rest. Its velocity becomes 30 ms−1 in 8s. Its acceleration will be
    Author: rikazzz Comment
    Physics
    Refractive Index of glass with respect to water is
    Refractive Index of glass with respect to water is 9/8.
    Author: rikazzz Comment
    Physics
    The SI unit of resistance is:
    The SI unit of resistance is Ohm.
    Author: rikazzz Comment
    Simple Harmonic Motion and Waves
    If potential energies and kinetic energies are equal then displacement of an object in SHM is
    Author: rikazzz Comment
    Physics
    Acceleration is the rate of change of
    Acceleration is the rate of change of velocity.
    Author: rikazzz Comment
    Physics
    A dynamo is used to convert
    A dynamo is used to convert mechanical energy into electrical energy.
    Author: rikazzz Comment
    Physics
    A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point the rifle
    A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point the rifle at a higher elevation than the bird.
    Author: rikazzz Comment
    Physics
    Pieces of camphor placed on water move about rapidly. This is because of
    The Camphor slowly dissolves in the water lowering the latter’s surface tension in the immediate neighbourhood. The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short.
    Author: rikazzz Comment
    Atomic and Nuclear Physics
    The half-life of Carbon-14 is
    Author: rikazzz Comment
    Physics
    Total internal reflection can not take place when light goes from :
    Total internal reflection will not take place unless the incident light is traveling within the more optically dense medium towards the less optically dense medium. Total internal reflection can not take place when light goes from water to glass.
    Author: rikazzz Comment