radium
plutonium
thorium
uranium
The loudness of a sound wave is determined by its
The loudness of sound depends upon
The magnifying power of an astronomical telescope can be decreased by
The magnitude of buoyant force depends on the _ of the fluid.
The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as:
The magnitude of saturation photoelectric current depends upon
The mass and energy equivalent to 1 a.m.u. respectively are
The mass of a body on Earth is 100 kg (acceleration) due to gravity,ge = 10 m/s2. If acceleration due to gravity on the Moon is ge /6, then the mass of the body on the Moon is
The material that can be permanently deformed by heat and pressure is called a
The material used in electric heater is
