Speed of sound (u) = 346 m/s
Time taken for hearing the echo (t) = 4s
⇒ Distance travelled by the sound = 346 ×4 = 1384 m.
In 4 s, sound has to travel twice the distance between the cliff and aditi. Therefore, the distance between the cliff and aditi is = = 692 m
Distance of cliff from aditi = 692 m
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