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A narrow sound pulse (for example, a sho...

A narrow sound pulse (for example, a short pip by a whistle) is send across a medium. (a) Does the pulse have a definite (i) wavelength (ii) frequency (iii) speed of propagation? (b) If the pulse rate is 1 after every 20s. (i.e, by a whistle equal to 1/20 Hz?

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To solve the problem step by step, we will address each part of the question systematically. ### Part (a) **Step 1: Understanding the nature of a sound pulse** A sound pulse, such as a short pip from a whistle, is a transient wave that travels through a medium. **Step 2: Analyzing the properties of the pulse** ...
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A narrow sound pulse (for example, a short pip by a whistle) is sent across a medium. (a) Does the pulse have a definite (i) wavelength, (ii) frequency, (iii) speed of propagation ? (b) If the pulse rate is 1 after every 20 s , (i.e. the whistle is blown for a split second after every 20 s ) is the frequency of the note produced by the whistle equal to (1)/(20) = 0.05 Hz ?

A narrow pulse (for example, a short pip by a whistle) is sent across a medium. If the pulse rate is 1 after every 20 s (that is the whistle is blow for a split of second after every 20 s). Is the frequency of the note produced by the whistle equal to 1//20 or 0.05 Hz ?

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A stationary source emits sound of frequency upsilon=1200Hz . If a wind blows at the speed of 0.1c deduce (i) the percentage change in the wavelength and (ii) the change in the frequency for a stationary observer on the wind side of the source. What happens when there is no wind, but the observer moves at speed 0.1c towards the source?

A stationary source emits sound of frequency upsilon=1200Hz . If a wind blows at the speed of 0.1c deduce (i) the percentage change in the wavelength and (ii) the change in the frequency for a stationary observer on the wind side of the source. What happens when there is no wind, but the observer moves at speed 0.1c towards the source?

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Huygen was the figure scientist who proposed the idea of wave theory of light he said that the light propagates in form of wavelengths. A wavefront is a imaginary surface of every point of which waves are in the same. phase. For example the wavefront for a point source of light is collection of concentric spheres which have centre at the origin w_(1) is a wavefront w_(2) is another wavefront. The radius of the wavefront at time 't' is 'ct' in thic case where 'c' is the speed of light the direction of propagation of light is perpendicular to the surface of the wavelength. the wavefronts are plane wavefronts in case of a parallel beam of light. Huygen also said that every point of the wavefront acts as the source of secondary wavelets. The tangent drawn to all secondary wavelets at a time is the new wavefront at that time. The wavelets are to be considered only in the forward direction (i.e., the direction of propagation of light) and not in the reverse direction if a wavefront w_(1) and draw spheres of radius 'cDeltat' they are called secondary wavelets. Draw a surface w_(2) which is tangential to all these secondary wavelets w_(2) is the wavefront at time t+Deltat Huygen proved the laws of reflection and laws of refraction using concept of wavefront. Q. Plane are incident on a spherical mirror as shown in the figure. the reflected wavefronts will be

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