The adjoining diagram shows a wave travelling in space. The wave reaches from o to a in 2s. Find the (i) frequency (ii) wavelength of the wave.
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Electromagnetic waves travel at the speed of light ( 299,792,458 metres per second). Their frequency and wavelength can be determined by a formula (picture attached)
1) “Frequency – 1/t (in sec.)”
=1/2
=0.5 Hz
2) “Wavelength of a wave = C / Lambda (as shown in the picture)”
=3x10^8/.5
=6x10^8 metres
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