Explain diffraction?
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Explain the advantage of fixed pulley?
Difference between intrinsic and extrinsic semiconductors?
Tell me what path does an asteroid take?
the fundamental forces of nature are most correctly given as?
What is the Magnetic substance ?
How do you find the refractive index of a liquid by using total internal reflection?
What is the smallest size of plane mirror in which a man can see his fill image length ?
Why dies a boat-man push the bank with an oar, when he wants to clear his boat off the bank?
Why a water pump raises water to a greater height at Bombay than at Simla
What percentage of mind Albert Einstein used ?
What is the role of a transformer in a rectifier?
Which is heavier the land mass or the sea?