Superconductors are substances which
Answer: C
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Mach number is used in connection with the speed of
Answer: B
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Friction can be reduced by changing from
Answer: D
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What will be the effect on gravitational acceleration if the earth suddenly stops its rotation?
Answer: B
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Light travels at the fastest speed in
Answer: C
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A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance
Answer: A
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Which is an example of Phototropism?
Answer: B
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Radio waves sent out by a radio stations are reflected by
Answer: D
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A Fuse is used in mains electric supply as a safety devices. Which one of the following statements about the fuse is correct?
Answer: C
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Gas law was given by
Answer: A
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