What is sonar ( sound navigation and ranging )?
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What is parallel force?
whether egg or hen came first
How magnetic materials are classified?
Shall i get Section engineer S & T question paper? (Railway recruitment board)
Why is it easier to lift a stone in water than in air ?
What is Refraction ?
the hardest substance available on earth
define rectilinear propagation of light?
What is Gravitational Force and why is everything being attracted towards Earth instead of other Planets.Can you describe in Terms of IT field when it comes to Network Topology?
Does sunlight reflected off a mirror increase the temperature of the sun-rays?
Explain what affect does electricity have on soil?
Why dies a piece of iron sink in water, while a ship remains floating ?