When the mass and velocity are doubled the kinetic energy will
Answer : D. increase 8 times
A small drop of mercury is spherical due to
Answer : B. surface tension
The relation amongst velocity(V), frequency (n) and wavelength(lamda) is
Answer : C. V=n lamda
what kind of energy works when a watch spring is wound up?
Answer : B. Potential energy
Which one of the following is a vector quantity?
Answer : A. Momentum
Sound energy is converted into electrical energy(audio signal) by a
Answer : A. Microphone