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- Question 1 of 10
1. Question
Two wires of same material and radii r and 2r respectively are welded together end to end. The combination is used as a sonometer wire and kept under tension T. the welded point is mid-way between the two bridges. When stationary waves are set up in the composite wire, the joint is a node. Then the ratio of the number of loops formed in the thinner to thicker wire is,
CorrectIncorrect - Question 2 of 10
2. Question
A tuning fork of frequency 480 Hz is in unison with pipe closed at one end vibrating in its first overtone. Then fundamental frequency of the pipe is
CorrectIncorrect - Question 3 of 10
3. Question
A pipe closed at one end vibrating in 5th overtone is in unison with open pipe vibrating in its 5th overtone. The ratio of lc : lo is.
CorrectIncorrect - Question 4 of 10
4. Question
An open organ pipe has a fundamental frequency of 300 Hz. The first overtone of this organ pipe is the same as the first overtone of a closed organ pipe. The length of the closed organ pipe is
CorrectIncorrect - Question 5 of 10
5. Question
In Meld’s experiment, the string vibrates in 4 loops when a 50 gram weight is placed in the pan of weight 15 gram. The make the string to vibrate is 6 loops the weight that has to be removed from the pan is
CorrectIncorrect - Question 6 of 10
6. Question
The frequency of the second overtone of a closed pipe
is in unison with the third overtone of an open pipe
other ratio of lengths of the pipe is
CorrectIncorrect - Question 7 of 10
7. Question
If n1 is the resonance frequency of a pipe open at both ends and n2 the resonance frequency of pipe open at one ends only, and both are vibrating in the fundamental mode and the pipes are of the same length, then
CorrectIncorrect - Question 8 of 10
8. Question
Two closed pipe produces 10 beats per second when emitting their fundamental nodes. If their lengths are in the ratio of 25: 26 their fundamental frequency in Hz are
CorrectIncorrect - Question 9 of 10
9. Question
Two identical straight wires are stretched so as to produce 6 beats per second when vibrating simultaneously. On changing the tension slightly in one of them, the beats frequency remains unchanged. Denoting by T1,T2 the higher and the lower initial tensions in the strings (T1>T2), then it could be said that while making the above changes in tension
CorrectIncorrect - Question 10 of 10
10. Question
Standing waves are produced by the superposition of two waves given by y1 = 0.4 sin 2p
andy2 = 0.4 sin 2p
where all the quantities are expressed in SI units. What is the amplitude of a particle at x = 0.05 m?CorrectIncorrect
and
where all the quantities are expressed in SI units. What is the amplitude of a particle at x = 0.05 m?