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Q. The locomotion of insects to the source of light is called :
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Q. The instrument which uses sound waves to measure the depth of oceans is
Q. Stress can be defined as ________ quantity.
Q. In which one among the following is the speed of sound maximum ?
Q. Acceptable noise level for human ear
Q. The half-life of a radioactive substance depends upon
Q. Rain drops acquire spherical shape due to
Q. When a body falls from an aeroplane, there is increase in its
Q. Weight of an object put in a satellite orbiting in space around the earth is
Q. Which one of the following received Nobel Prize twice for the same subject?
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