Thursday, 31 December 2020

Why the pencil looks shifted when kept in a glass of water? 🤔

 


Whenever light travels from one medium to another it changes it's angle and thus we see that the object is shifted 

The relation of light travelling from one medium to another is given by snell's law i.e.

 nA Sinθ A = nB Sinθ B

Why AC circuit was chosen over DC?

George Westinghouse was the scientist who discovered or formulated the idea of power transmission via AC over DC to which he had following s...