Discuss how sound is originated ?

Explain how sound is propagated as a longitudinal wave .

What is meant by standard electrode potential ? How does it originate ?

How is loudness of sound related to the intensity of wave producing it?

If the intensity of sound is increased by a factor of 30, by how many decibels in the sound level increased :-

Define transformation in Griffith's experiment. Discuss how it helps in the identification of DNA as the genetic material.

(a) The power of sound from the speaker of a radio is 20 mW. By turning the knob of volume control the power of sound is increased to 400 mW, What is the power increase in dB as compared to original power? (b) How much more intense is an 80 dB sound than a 20 dB whisper?

Explain how sound is produced by your school bell ?

Discuss how classification systems have undergone several changes over a period of time.

Discuss how classification systems have undergone several changes over a period of time?

How is sound produced ?