Sound waves are similar to the?waves
1). of laswer light passing through air?
2). generated in a stretched wire by hitting or plucking the wire
3). generated in a pipe filled with air by?moving the piston attached to the pipe up and down
4). generated by the mobile phone towers?
1. The period of revolution of a geostationary satellite is
2. The phenomenon of light associated with the appearance of blue colour of the sky is
3. Water from soil enters into the root hairs owing to :
4. Wollen clothes keep the body warm because
5. Total number of colours exists in sunlight
6. ?Which of the following property of?sound is affected by change in air temperatue?
7. The instrument for measuring intensity of earthquakes is called
8. For a body moving with no uniform velocity and uniform acceleration
9. Electric Motor converts ________ energy to mechanical energy
10. In which of the following cases kinetic energy is being used in performing work