21OH!!!
1 mor dbt.....
but then the ans shud λ/4 = 15 [7]
y they take 3λ/4???
17 Answers
62there will be 2 pressure nodes here.. infact 3
one at 15 one at 45 and one at 75
think carefully.. :)
2162
source navaching.com
the pressure node is something else!
it is the antinode..
i did not know this...
so now you will get the right answer :)
21its not mine, thats da ans givn in da bk.......
mere ko bhi 45 nahi aa raha hai....
1but hw is ur answer 45....its nt possible.........[12][12][12]...........
21ya very much complete......
its a straight type question........
217λ/4 = L ........................(as 3rd overtone ==> n=4)
λ = 60;
closed end is always node.......
so the next simple node cums at λ/2 = 30 ≠45
21taht to i too know........
but is ther nething special abt "PRESSURE" node........ or is it da same???
if dats da case : ans shud b 30 not 45........
39node is the point where amplitude is minimum, antinode is point where amplitude is maximum.