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A source of sound S and a detector D are placed at some distance from one another. A big cardboard is placed near the detector and perpendicular to the line SD as shown in figure. It is gradually moved away and it is found that the intensity changes from a maximum to a minimum as the board ismoved through a distance of 20 cm. Find the frequency of the sound emitted. Velocity of sound in air is 336 m/s

A source of sound S and a detector D are placed at some distance from one another. A big cardboard is placed near the detector and perpendicular to the line SD as shown in figure. It is gradually moved away and it is found that the intensity changes from a maximum to a minimum as the board ismoved through a distance of 20 cm. Find the frequency of the sound emitted. Velocity of sound in air is 336 m/s

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
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