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3.3. Electromagnetic spectrum
A subsection of Physics, 5054, through 3. Waves
Listing 10 of 41 questions
shows the electromagnetic spectrum. gamma rays shortest wavelength longest wavelength P ultra-violet visible light Q microwaves radio waves Two components of the spectrum, P and Q, have not been named. State the name of component P, component Q. All electromagnetic waves have a wavelength and a frequency. They all have changing magnetic and electric fields. State two other properties of all electromagnetic waves. 1. 2. State the component of the electromagnetic spectrum used for satellite communication.
5054_s12_qp_21
THEORY
2012
Paper 2, Variant 1
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The list below contains three components of the electromagnetic spectrum. infra-red gamma rays visible light Arrange the components in order of increasing wavelength. Satellites are used in the transmission of some television signals. shows a satellite above the television station where a television signal is generated. television station satellite (not to scale) State which component of the electromagnetic spectrum is used to transmit the television signal to the satellite. Explain how the satellite is used. Suggest one advantage of using a satellite to transmit television signals.
5054_s13_qp_22
THEORY
2013
Paper 2, Variant 2
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A star emits electromagnetic radiation over a range of wavelengths. shows the brightness of the radiation from the star at different wavelengths. 1.0 × 10–6 2.0 × 10–6 3.0 × 10–6 4.0 × 10–6 wavelength / m brightness Radiation from the star is brightest at one wavelength. Determine the wavelength where the radiation is brightest. wavelength = Visible light has a wavelength between 4.0 × 10−7 m and 7.0 × 10−7 m. The radiation in lies just outside the visible part of the electromagnetic spectrum. State the name of the region of the spectrum that contains the radiation in . Determine the frequency of the radiation in . The speed of light is 3.0 × 108 m / s. frequency =
5054_s19_qp_22
THEORY
2019
Paper 2, Variant 2
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Questions Discovered
41