Question

(3) 5/21 s
6.
In the figure shown, ABCDEF is a thin 100
open at A and D. A source of sound is placed
point A. If the wavelength of sound emitted is 0.2 m,
then at D, a detector will receive maxima of sound if
BK
- 40 cm -
3 cm
30 cm
40 cm
20 cm
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Answer 1

Answer:

40 cm pls become my friend ❤️