Experiment on reflection of the sound
Answers
Answer:
Two metal or cardboard tubes are set up, inclined to one another in a horizontal plane, and pointing towards a vertical flat surface of any hard material, e.g., a drawing-board (Fig. 27.5).
An experiment on the reflection of sound
An experiment on the reflection of sound
A ticking watch is placed near the end of one tube and the ear is placed at the
end of the other tube. Sound waves pass down the first tube and are reflected from the board, The loudness of the sound heard through the second tube is found to be a maximum when the board is adjusted so that the normal to it lies in the plane of the tubes and makes equal angles with their axes. Under these conditions the incident and reflected waves and the normal are in the same plane and the angle of incidence is equal to the angle of reflection. Sound thus
obeys the same laws of reflection as light.
An experiment on the reflection of sound
An experiment on the reflection of sound
Answer:
Explanation:
A ticking watch is placed near the end of one tube and the ear is placed at the
end of the other tube. Sound waves pass down the first tube and are reflected from the board, The loudness of the sound heard through the second tube is found to be a maximum when the board is adjusted so that the normal to it lies in the plane of the tubes and makes equal angles with their axes. Under these conditions the incident and reflected waves and the normal are in the same plane and the angle of incidence is equal to the angle of reflection. Sound thus
obeys the same laws of reflection as light.
