State two assumptions made in kinetic theory of gases
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Two identical tubes, A and B, held horizontally contain air and water respectively. A small quantity of coloured water is introduced at one end of A while at the same time, a small quantity of coloured water is introduced at ...
Briefly explain the working of a transformer. Hence, explain why a transformer cannot be used to step-up voltage from a battery.
Explain how an “excited” hydrogen atom is able to emit radiations of different wavelengths.
Briefly explain how electric locomotives achieve their performance.
Explain how doping produces a p-type semi-conductor from pure semi-conductor material.
Explain how submarines float or sink while navigating through water bodies.