How is the index of refraction computed?
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For what the parabolic dishes are used?
Explain what is a crest?
What is the Condensation ?
What is the life of permanent magnet and what type of magnet is used in speakers?
Similar charges repel while dissimilar ones attract each other. How does two electrons attract each other during the formation of bond or why don't the protons in the nucleus repel?
What is a galvanometer and its use?
-100 mmWC means how much kg/cm2
What are the 4 results of the photoelectric effect experiments? : quantum physics
Mention the applications of electron microscope. : quantum physics
i need the working and properties of the sextent and all the objects and much more about sextent..
What is the velocity of sound in air ?
Explain what is a newton meter?