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samyak shwet from kidzee, Begusarai
Subject :NSO    Class : Class 8

An explosion takes place at a distance of 3200 m away from a sound detector that detects only the sound coming from the ground.

The sound detector detects two sound signals at 0.64 s and 0.80 s after the explosion. Calculate the depth x of the soft ground.

A1200 m
B2400 m
C3200 m
D5000 m


Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 2:

Rahul Jha from Delhi Public School BN, Bengaluru
Class : Class 8

Ans 3:

Ved Sinha from DL DAV MODEL SCHOOL, New Delhi
Class : Class 8

Ans 4:

Labonyo Sen from Calcutta Girls High School, KOLKATA
Class : Class 8

Ans 5:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 6:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8

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