Multiple choice

What is the use of extra yellow head lights of a car?

  1. Yellow light expands less energy.

  2. Yellow light does not make the pedestrian blind.

  3. Yellow light can penetrate the fog so on a foggy day road becomes clear.

  4. To decorate the car.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yellow light has a longer wavelength that scatters less in fog compared to white light (Rayleigh scattering decreases with longer wavelength). This gives better penetration through fog particles, improving visibility. Yellow light also causes less eye strain than white light.

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