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It says when it passes 1 post it has a speed of 10
Ans is C.. The period of the wave is 60 ms.. Count the boxes.. the actual wave completes in 6 boxes.. Now u need to find the option in which the wave completes in 60 ms.. Its only in C. Wave completes in 3 boxes, each of 20 ms, hence the period is 60 ms
TYAns is C.. The period of the wave is 60 ms.. Count the boxes.. the actual wave completes in 6 boxes.. Now u need to find the option in which the wave completes in 60 ms.. Its only in C. Wave completes in 3 boxes, each of 20 ms, hence the period is 60 ms
bro i have the same doubt.
i thought how it acts ... it is amphotteric. i acts as a acid as well as base.
oh hello it reacts as acid and base too. so it can be amphoteric.
*RAIN OF ALTERS*
i am not slow like u
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