A sound wave starting from source `S`, follows two paths `AOB and ACB` to reach the detector `D`. If `ABC` is an equilateral traingle , of side `l` and there is silence at point `D`, the maximum wavelength `(lambda)` of sound wave must be

A sound wave starting from source S , follows two paths SEFD and SEABFD . If AB = 1 , AE = BF = 0.6 l and wavelength of wave is lambda = 11 m . If maximum sound is heard at D , then maximum value of length l is

A sound wave starting from source S , follows two paths SEFD and SEABFD . If AB = 1 , AE = BF = 0.6 l and wavelength of wave is lambda = 6 m . If maximum sound is heard at D , then maximum value of length l is

Sound wave from a source A, follows two paths AOB and APQB in a tube as shown in figure. For silence at B, possible wavelength of sound will be

Two sound waves emerging from a source reach a point simultaneously along two paths. When the path difference is 12 cm or 36 cm , then there is a silence at that point. If the speed of sound in air be 330 m//s , then calculate maximum possible frequency of the source.

Two sound waves emerging from a source reach a point simultaneously along two paths. When the path difference is 12 cm or 36 cm , then there is a silence at that point. If the speed of sound in air be 330 m//s , then calculate maximum possible frequency of the source.

In the case of sound waves, wind a blowing from source to reciver with speed U_(W) . Both source and receiver are stationary.If lambda_(0) is the original wavelength with no wind and V is speed of sound in air then wavelength as received is given by :

In the case of sound waves, wind a blowing from source to reciver with speed U_(W) . Both source and receiver are stationary.If lambda_(0) is the original wavelength with no wind and V is speed of sound in air then wavelength as received is given by :

A narrow tube is bend in the form of a circle of radius R, as shown in the figure. Two small holes S and D are made in the tube at the positions right angle to each other. A source placed at S generated a wave of intensity I_(0) which is equally divided into two parts : One part travels along the longer path, while the other travels along the shorter path. Both the parts wave meet at the point D where a detector is placed. If the minima is formed at the detector then, the magnitude of wavelength lamda of the wave produced is given by :-

A sound source, detector and a cardboard are arranged as shown in figure. The wave is reflected from the cardboard at the line symmetry of source edetector. Initially the path difference between the reflected wave and the direct wave is one third of the wavelength of sound. Find the minimum distance by which the cardboard should be moved upwards so that both waves are in phase.