What is a Pressure ?
a truck A moving with a velocity of 30m/s collides with a stationary trolley B of mass 0.5tonnes after collision the two bodies were automatically connected.find their common velocities after collision if the mass of truck is 1.2tonne.
What is the second law of thermodynamics?
What is the Cement ?
Is Ohm's Law obeyed in the transformer equation? Explain the answer.
What is the melting point of copper?
Explain how spectral lines show discrete energy levels in an atom. : quantum physics
Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?
What are isotopes?
Explain what is the translucent?
Why we cant break an egg by applying force along conical sides?
What is time?
Why is ice wrapped in gunny bags ?