Science, asked by anuradha14102, 7 hours ago

What can be said for the given statements: I) Ultrasonic sounds cannot be heard by human ear as it has frequency above 20 kHz ii) Echo can be heard in every room
iii) Due to high humidity, speed of sound in Chennai is more than that in Delhi

Answers

Answered by laxanedineshwari

0

sound statement cannot be guaranteed frequently

Answered by yashjasujani3

0

gsofiwnxudj jirocirmxkeiusgc

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