Super Position of Longitudinal Waves
PHXI15:WAVES

354982 When two tuning forks \(A\) and \(B\) are sounded together, 4 beats per second are heard. The frequency of the fork \(B\) is \(384\;Hz\). When one of the prongs of the fork \(A\) is filed and sounded with \(B\), the beat frequency increases, then the frequency of the fork \(A\) is

1 \(388\;Hz\)
2 \(389\;Hz\)
3 \(380\;Hz\)
4 \(379\;Hz\)
PHXI15:WAVES

354983 A closed and an open organ pipe of same length are set into vibrations simultaneously in their fundamental mode to produce 2 beats. The length of open organ pipe is now halved and of closed organ pipe is doubled. Now find the number of beats produced.

1 7
2 9
3 5
4 10
PHXI15:WAVES

354984 When beats are formed by two waves of frequencies \(n_{1}\) and \(n_{2}\), the amplitude varies with frequency equal to

1 \({n_1} - {n_2}\)
2 \(2\left( {{n_1} - {n_2}} \right)\)
3 \(\left( {{n_1} - {n_2}} \right)/2\)
4 \(\left(n_{1}+n_{2}\right) / 2\)
PHXI15:WAVES

354985 25 tunning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce 3 beats/sec. If the frequency of the first tuning fork is the octave of the last fork, then the frequency of the \(21^{s t}\) fork is

1 \(288\;Hz\)
2 \(72\;Hz\)
3 \(87\;Hz\)
4 \(84\;Hz\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI15:WAVES

354982 When two tuning forks \(A\) and \(B\) are sounded together, 4 beats per second are heard. The frequency of the fork \(B\) is \(384\;Hz\). When one of the prongs of the fork \(A\) is filed and sounded with \(B\), the beat frequency increases, then the frequency of the fork \(A\) is

1 \(388\;Hz\)
2 \(389\;Hz\)
3 \(380\;Hz\)
4 \(379\;Hz\)
PHXI15:WAVES

354983 A closed and an open organ pipe of same length are set into vibrations simultaneously in their fundamental mode to produce 2 beats. The length of open organ pipe is now halved and of closed organ pipe is doubled. Now find the number of beats produced.

1 7
2 9
3 5
4 10
PHXI15:WAVES

354984 When beats are formed by two waves of frequencies \(n_{1}\) and \(n_{2}\), the amplitude varies with frequency equal to

1 \({n_1} - {n_2}\)
2 \(2\left( {{n_1} - {n_2}} \right)\)
3 \(\left( {{n_1} - {n_2}} \right)/2\)
4 \(\left(n_{1}+n_{2}\right) / 2\)
PHXI15:WAVES

354985 25 tunning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce 3 beats/sec. If the frequency of the first tuning fork is the octave of the last fork, then the frequency of the \(21^{s t}\) fork is

1 \(288\;Hz\)
2 \(72\;Hz\)
3 \(87\;Hz\)
4 \(84\;Hz\)
PHXI15:WAVES

354982 When two tuning forks \(A\) and \(B\) are sounded together, 4 beats per second are heard. The frequency of the fork \(B\) is \(384\;Hz\). When one of the prongs of the fork \(A\) is filed and sounded with \(B\), the beat frequency increases, then the frequency of the fork \(A\) is

1 \(388\;Hz\)
2 \(389\;Hz\)
3 \(380\;Hz\)
4 \(379\;Hz\)
PHXI15:WAVES

354983 A closed and an open organ pipe of same length are set into vibrations simultaneously in their fundamental mode to produce 2 beats. The length of open organ pipe is now halved and of closed organ pipe is doubled. Now find the number of beats produced.

1 7
2 9
3 5
4 10
PHXI15:WAVES

354984 When beats are formed by two waves of frequencies \(n_{1}\) and \(n_{2}\), the amplitude varies with frequency equal to

1 \({n_1} - {n_2}\)
2 \(2\left( {{n_1} - {n_2}} \right)\)
3 \(\left( {{n_1} - {n_2}} \right)/2\)
4 \(\left(n_{1}+n_{2}\right) / 2\)
PHXI15:WAVES

354985 25 tunning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce 3 beats/sec. If the frequency of the first tuning fork is the octave of the last fork, then the frequency of the \(21^{s t}\) fork is

1 \(288\;Hz\)
2 \(72\;Hz\)
3 \(87\;Hz\)
4 \(84\;Hz\)
PHXI15:WAVES

354982 When two tuning forks \(A\) and \(B\) are sounded together, 4 beats per second are heard. The frequency of the fork \(B\) is \(384\;Hz\). When one of the prongs of the fork \(A\) is filed and sounded with \(B\), the beat frequency increases, then the frequency of the fork \(A\) is

1 \(388\;Hz\)
2 \(389\;Hz\)
3 \(380\;Hz\)
4 \(379\;Hz\)
PHXI15:WAVES

354983 A closed and an open organ pipe of same length are set into vibrations simultaneously in their fundamental mode to produce 2 beats. The length of open organ pipe is now halved and of closed organ pipe is doubled. Now find the number of beats produced.

1 7
2 9
3 5
4 10
PHXI15:WAVES

354984 When beats are formed by two waves of frequencies \(n_{1}\) and \(n_{2}\), the amplitude varies with frequency equal to

1 \({n_1} - {n_2}\)
2 \(2\left( {{n_1} - {n_2}} \right)\)
3 \(\left( {{n_1} - {n_2}} \right)/2\)
4 \(\left(n_{1}+n_{2}\right) / 2\)
PHXI15:WAVES

354985 25 tunning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce 3 beats/sec. If the frequency of the first tuning fork is the octave of the last fork, then the frequency of the \(21^{s t}\) fork is

1 \(288\;Hz\)
2 \(72\;Hz\)
3 \(87\;Hz\)
4 \(84\;Hz\)