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Q1
The image below shows a student playing with a remote-controlled car.
The remote control transmits radio waves to the car aerial.
The transmitted radio waves have a frequency of 320 MHz.
speed of radio waves = 3.0 × 108 m/s
Calculate the wavelength of the radio waves.
Give the unit.
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Wavelength = __________ Unit __________ (5)
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f=320 MHz=3.2×108 Hz
c=3.0×108 m/s
c=f×λ
λ=c/f=3.0×10^8/3.2×10^8
λ=0.9375 m
λ=0.94 m

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