04:32
two forks P and Q,produce 4 beats per sec,if Q is loaded ,beats become 3,if f of P is 512,,,,,,
30:49
Left Hand ,And Right Hand Rules,,in physics,,easy explanations,,,,...Lecture#02...Feroz Shah QCA
12:59
2nd year physics ,,Ch#18,,Lecture #06...Pair production,,annihilation,,Uncertanty principle..