Chapter 17 – Wave Motion

The ratio of intensities between two coherent sound sources is 4 : 1. The difference of loudness in decibels between maximum and minimum intensities, when they interfere in space, is is The ratio of intensities between two coherent sound sources is 4 : 1. The difference of loudness in decibels between maximum and minimum intensities [...]

The equation of a travelling wave is given as y=5 sin 10 pi(t-0.01x), along the x-axis . Here, all quantities are in SI units. The phase difference between the points separated by a distance of 10 m along x-axis is all quantities are in SI units. The phase difference between the points separated by a [...]

Speed of transverse wave in a string of density 100kg/m^(3) and area of cross-section 10mm^(2) under a tension of 10^(3) N is Speed of transverse wave in a string of density 100kg/m^(3) and area of cross-section 10mm^(2) under a tension of 10^(3) N is June 26, 2021 Category: Arihant Physics by D.C Pandey , Chapter [...]

Two open organ pipes of fundamental frequencies n1 and n2​ are joined in series. The fundamental frequency of the new pipe so obtained will be: Two open organ pipes of fundamental frequencies n1 and n2​ are joined in series. The fundamental frequency of the new pipe so obtained will be: June 26, 2021 Category: Arihant [...]

A source frequency f gives 5 beats when sounded with a frequency 200Hz. The second harmonic of same source gives 10 beats when sounded with a source of frequency 420Hz. The value of f is. A source frequency f gives 5 beats when sounded with a frequency 200Hz. The second harmonic of same source gives [...]

A chord attached about an end to a vibrating fork divides it into 6 loops when its tension is 36 N. The tension at which it will vibrate 4 loops is: A chord attached about an end to a vibrating fork divides it into 6 loops when its tension is 36 N. The tension at [...]

A string, fixed at both ends, vibrates in a resonant mode with a separation of 2.0 cm between the consecutive nodes. For the next higher resonant frequency, this separation is reduced to 1.6 cm. Find the length of the string. A string fixed at both ends this separation is reduced to 1.6 cm. Find the [...]

In case of closed organ pipe, which harmonic the p^(th) overtone will be. In case of closed organ pipe which harmonic the p^(th) overtone will be. June 26, 2021 Category: Arihant Physics by D.C Pandey , Chapter 17 - Wave Motion , Volume 2 ,

A person can hear frequencies only up to 10 kHz. A steel piano wire 50 cm long of mass 5 g is stretched with a tension of 400 N. The number of the highest overtone of the sound produced by this piano wire that the person can hear is A transverse periodic wave on a [...]

A taut string fixed at both ends vibrates in n^(th) overtone. The separation between adjacent node and antinode is to be ‘d’. If the length of the string is L, then A taut string fixed at both ends vibrates in n^(th) overtone. The separation between adjacent node and antinode is to be 'd'. If the [...]