What is the difference between a lens and a mirror?
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Explain the parallel force?
Why is water in kept in ?gharas? in summer ?
This person established the one fluid theory of electricity and performed some of the first investigations into electrical grounding and insulation:
Explain the Real and Virtual Image ?
What do you mean by newton meter?
If a number of planes are talking off form an aircraft carrier, what is the minimum interval required between the take-off of the successive planes ?
Describe the Infra-red and Ultra-voilet rays?
Explain band theory ?
Does solar radiation contain a complete spectrum of all forms of electromagnetic radiation?
Explain the steps to the scientific notation?
Explain application of optical fibers and sensors?
Explain what is the shadows?