Rainbow is seen after rain because of hanging molecules of water which act as __________?
Correct answer: B. Prism
- A. Lens
- B. Prism
- C. Mirror
- D. Slabs
Explanation
Raindrops disperse sunlight by refraction, internal reflection, and refraction again, acting approximately like tiny prisms. This separates white sunlight into the colours of a rainbow.
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Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
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