InterviewSolution
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InterviewSolution
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`S_(1)` : A standing wave pattern if formed in a string. The power transfer through a point (other than node and antinode) is zero always `S_(2)`: if the equation of transverse wave is `y= sin 2pi[t/0.04-x/40]`, where distance is in cm. time in second, then the wavelength will be 40 cm. `S_(3)`: if the length of the vibrating string is kept constant, then frequency of the string will be directly proportional to `sqrt(T)`A. FTTB. TTFC. TFTD. FFF |
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Answer» Correct Answer - A `S_(1)=` False at node v=0, at antinode tension `bot` to velocity `:.` at the points power `=0(P=vec(F).vec(V))` At other points `Pne0` `S_(2)`: True Equation of transverse wave is given by `y=5 sin 2pi[t/0.04-x/40].....(1)` The standard equation of transverse wave is `y=a sin 2pi[t/T-x/(lambda)].....(2)` Now comparing the given equation (1) and the standard equation (2) we obtain `lambda=40 cm ` where `lambda` is the wavelength of wave `S_(3)`: True The effect of tension is searched by keeping the length of the string constant, while the tension is alternate to brign the wire into unision with a number of standerd forks in turn. experiments varifies that the frequency is directly proportional to the square root of tension which is `f prop sqrt(T)` |
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