Arihant Physics by D.C Pandey

In a stationary wave that forms as a result of reflection of waves from an obstacle, the ratio of the amplitude at an antinode to the amplitude at node is n. The fraction of energy reflected is In a stationary wave that forms as a result of reflection of waves from an obstacle the ratio [...]

Two sound waves have intensities of 10 and 500μW/cm^2. How many describe is the second sound louder than the first? Two sound waves have intensities of 10 and 500μW/cm^2. How many describe is the second sound louder than the first? June 26, 2021 Category: Arihant Physics by D.C Pandey , Chapter 17 - Wave Motion [...]

A closed pipe and an open pipe of same length produce 2 beats, when they are set into vibrations simultaneously in their fundamental mode. The length of the open pipe is now halved, and of closed pipe is doubled, the number of beats produced will be A closed pipe and an open pipe of same [...]

First overtone frequency of a closed organ pipe is equal to the first overtone frequency of an open organ pipe. Further nth harmonic of closed organ pipe is also equal to the nth harmonic of open pipe, where n and m are First overtone frequency of a closed organ pipe is equal to the first [...]

String 1 has twice the length, twice the radius, twice the tension and twice the density of another string 2. The relation between the fundamental frequencies of 1 and 2 is String 1 has twice the length twice the radius twice the tension and twice the density of another string 2. The relation between the [...]

A sufficiently long closed organ pipe has a small hole at its bottom . Initially, the pipe is empty. Water is poured into the pipe at a constant rate . The fundamental frequency of the air column in the pipe A sufficiently long closed organ pipe has a small hole at its bottom . Initially [...]

If λ1,λ2 and λ3 are the wavelengths of the waves giving resonance with the fundamental, first and second overtones respectively of a closed organ pipe. Then the ratio of wavelengths λ1:λ2:λ3 is first and second overtones respectively of a closed organ pipe. Then the ratio of wavelengths λ1:λ2:λ3 is If λ1 λ2 and λ3 are [...]

A source of frequency 10kHz when vibrated over than mouth of a closed organ is in unison at 300K. The beats produced when temperature rises by 1K is A source of frequency 10kHz when vibrated over than mouth of a closed organ is in unison at 300K. The beats produced when temperature rises by 1K [...]

Two identical sound S1 and S2 reach at a point P is phase. The resultant loudness at point P is ndB higher than the loudness of S1 the value of n is : Two identical sound S1 and S2 reach at a point P is phase. The resultant loudness at point P is ndB higher [...]

A string of length L is stretched by L/20 and speed of transverse wave along it is v. The speed of wave when it is stretched by L/10 will be : (assume the Hooke’s law is applicable) A string of length L is stretched by L/20 and speed of transverse wave along it is v. [...]