O-LevelPhysicsLight5054/11 · May/June 2016 · Q241 Mark
Microwaves are used to transmit television signals to and from a satellite. Which statement about microwaves is correct?
AThey have a longer wavelength than radio waves.
BThey penetrate the atmosphere without significant loss of energy.
CThey travel much faster than radio waves in a vacuum.
DThey warm the satellite and stop it freezing.
✓ Correct answer
B: They penetrate the atmosphere without significant loss of energy.
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