Q. Which among the following determines the pitch of a sound?
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Q. A man carrying a load on his back bends forward because of one of the following reasons
Q. The density of water is 1 g/cc. This is strictly valid at
Q. Which of the following devices can be used to detect radiant heat?
Q. When a ship floats on water
Q. The sparking at the brushes in the D.C generator is attributed to
Q. The boiling point of water decreases at higher altitudes is due to
Q. Super conductivity is a phenomenon in which the resistance of a substance
Q. In an inelastic collision, state which of the following statements is true:
Q. The motion of the wheels of a bullock-cart while moving on the road is an example of
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