Polarisation
Interference
Diffraction
Reflection
A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will
A solid cube just gets completely immersed in water when a 0.2 kg mass is placed on it. If the mass is removed, the cube is 2 cm above the water level. What is the length of each side of the cube?
A solid needle placed horizontally on the surface of the water floats due to
A sound wave having wavelength λ from stationary waves after reflection from surface . the distance between two consecutive nodes is
A sphere rolls down on two inclined planes of different angles but same height, it does so
A spherical ball made of steel when dropped in mercury container will
A sprayer works on the principle expounded by
A spring balance A and a beam balance B are used to weigh an object at different points on Earth. It will be observed that
A standing wave occurs when
A star appears twinkling in the sky because of
