ICSE Class 10 Physics 2023 Solved Paper
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Question : 56
Total: 76
Calculate the distance covered by the Ultrasonic wave having a velocity of 1.5 kms − 1 14 s
Solution:
Given : v = 1.5 kms − 1 = 1500 ms − 1
t = 14 s .
Let the distance between the source of ultra-sonic wave and the reflector be 'd
we know,
v =
⇒ 2 d = v × t
⇒ d =
=
= 10500 m
Total distance covered= 2 d
= 2 × 10500
= 21000 m
= 21 k m
Let the distance between the source of ultra-sonic wave and the reflector be '
we know,
Total distance covered
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