What two properties of electromagnetic waves are used to attach info to radio signals?
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Explain when is fluorescence strong?
By which formula, the values in one thermometer can be converted into that of another thermometer ?
I observed this question to be asked in many exams - We cannot move even a finger without disturbing all the stars?Explain it.
Explain the domestic consumption of electricity is calculated in?
What happens to the velocity of sound with the rise of temperature?
What is the term for the speed at which an object will overcome the gravitational attraction of the earth?
Why is the apparent altitude of a star increased by reflection in atmosphere ?
What is ultrasonic sound?
Which of the surfaces of a thermos flask are silvered and why?
Explain what is the transparent?
Explain band theory ?
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