EASY
10th Tamil Nadu Board
IMPORTANT
Earn 100

What is an echo? What are the medical applications of echo?

Important Questions on Acoustics

MEDIUM
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 5 - Acoustics>TEXTBOOK EVALUATION>Q 4
What is an echo? How can you calculate the speed of sound using echo?
MEDIUM
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 5 - Acoustics>TEXTBOOK EVALUATION>Q 1
Suppose that a sound wave and a light wave have the same frequency, then which one has a longer wavelength?
MEDIUM
10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 5 - Acoustics>TEXTBOOK EVALUATION>Q 2
When sound is reflected from a distant object, an echo is produced. Let the distance between the reflecting surface and the source of sound remain the same. Do you hear an echo sound on a hotter day? Justify your answer.