When I have one cubic foot of air enclosed within a
weightless container and place it on the surface of a fresh
water body of water at sea level how much mass (weight)
will it support before it sinks below the surface?
Why is a ship loaded with a ballast(bottom load) ?
Explain the Mortar ?
Swimmers are provided with an inflated rubber jacket . why?
When a glass cylinder is filled with water and a piece of thick paper is placed at the mouth and the cylinder is inverted, the paper dies not fall. Why ?
WHICH OF THE FOLLOWING PAIR IS INCORRECT? A) ROENTGEN: X-RAY B) NEWTON: LAW OF GRAVITATION C) FARADAY: DIFFUSION OF GASES D) PASTEUR: BACTERIOLOGY
For measuring weight of 2cm3 piece of density 4gm/cm3 which spring balance is best suited what is the range and least count how we calculate
Explain the Reflection ?
laser is an acronym for light amplification by
Explain the refraction of light ?
When gravity is the only force acting on an object the object is in what?
Describe the Infra-red and Ultra-voilet rays?
what is big ban theory???????????????????????????????