||An example of a longitudinal wave is –
||Sound wave in air is –
||In a Sitar, which type of sound vibrations are produced?
||Stationary and Transverse
||Long radio waves are reflected by which layer of the earth’s surface –
||Wireless communication is reflected back to the earth’s surface by the –
||Waves of the Ultra High Frequency (UHF) range normally propagate by means of –
||Which waves cannot be transmitted through a vacuum?
||Cosmic rays –
||Are charged particles
||What is the distance between two successive crests or successive troughs called?
||The velocity of electromagnetic waves is –
||3 × 108ms–1
||Which electromagnetic radiation has the maximum energy?
||Microwaves are electromagnetic waves having frequencies in the range of –
||1 GHz – 300 GHz
||A radar which detects the presence of an enemy aircraft uses –
||When there is a depletion of ozone in the stratosphere, the wavelength of radiation striking the earth’s surface will be –
||The waves used in common TV remote control are –
||What does a TV remote control unit use to operate a TV set?
||Waves used for telecommunication are –
||FM broadcasting service uses the range of frequency bands between –
||A radio station broadcast at 30-metre band. The frequency of the carrier wave transmitted by this station is –
||CT Scan is done by using –