How does a sound wave travel in air?
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Explain the difference between isolation transformers and step up or step down transformer?
Define Bulk modulus ?
How is the index of refraction computed?
Explain about Microphone?
How does birds specially adopted to flight ?
What is photometry?
What is the difference between collector & emitter of trnsistor,even though material used for both same.
Name the element which has the simplest absorption spectrum?
When we jump form the boat to the bank why the boat goes backwards from the bank ?
What is the avarege speed of people fencing like at the olympic games. (sorry for the misspelled words)
Why a water pump raises water to a greater height at Bombay than at Simla
how does a medicine is filled in dropper