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Q. Oil raise up the wick in a lamp. The principle involves
The raise of oil up the wick in a lamp is an example of capillary action where adhesive forces are greater than cohesive forces.
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Q. The ratio of the total distance travelled by a body to the total time taken by it is its
Q. The magnitude of buoyant force depends on the ________ of the fluid.
Q. Soap bubbles show multiple colours when viewed in white light because of
Q. The recoiling of gun is an example of which of the following?
Q. The condition for the maximum efficiency of the transformer is that
Q. Which of the following one among the following doesn't have any effect on velocity of sound
Q. Who invented the phonograph?
Q. It is difficult to cook rice
Q. Which one of the following is a non-dimensional quantity?
Q. Which one of the following is applicable to collision-coalescence process of precipitation?
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