GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a range
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a score
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a light
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a sound
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Detailed explanation-1: -The spectrum is the range of different colours which is produced when light passes through a glass prism or through a drop of water. A rainbow shows the colours in the spectrum. 2. countable noun [usually singular] A spectrum is a range of a particular type of thing.
Detailed explanation-2: -spec·trum ˈspek-trəm. plural spectra-trə or spectrums. : a continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths are arranged in order.
Detailed explanation-3: -The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
Detailed explanation-4: -Frequency spectrum of a signal is the range of frequencies contained by a signal. For example, a square wave is shown in Fig. 3.5A. It can be represented by a series of sine waves, S(t) = 4A/ sin(2ft) + 4A/3 sin(2(3f)t) + 4A/5 sin(2(5f)t + …)