ICSE Class 7 - Reflection and Characteristics of Sound Videos
Sound
Working of human ear & its parts: the outer, middle & the inner ear. Range of hearing, ultrasound & its applications, principle & working of SONAR.
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- reflection of sound
- defin ultrasonic sound
- What do you meant by term echo?
- What do you meant by term echo?
- I didnot understand the relation between speed and V.
- Why is it mandatory for musicians to wear ear protectors during a concert?
- Write any two effect of noise?
- Why does a vibrating a simple pendulum not produce any sound??
- Sums related to sonar
