Explain the law of machines?
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Tell me why is n-type conductor is neutral?
Why objects having inverted in the air ate seen in very cold regions ?
What is sound velocity?
Explain the Washing soda ?
Which property of sound is affected by change in air temperature?
Explain about Magnetic mines
While at berkeley, melvin calvin used this radioisotope to decipher many of the complex processes of photosynthesis:
A 100W bulb and 60 bulb both rated at 220V are connected in series across 220V supply. If 60W bulb is removed and only 100W bulb remains in the circuit, will illumination increase or decrease?
What is soft water?
How will it be possible to kindle fire, if we had no matches ?
Which lens is used for correcting long ?sightedness ?
What is anti - noise?