What is a rainbow? Draw a labelled diagram to show the formation of a rainbow.
Answers
Answer:
Explanation:
A rainbow is a band of colors. It is a natural spectrum appearing in the sky after rain. It is formed by the dispersion of sunlight by tiny water droplets in the sky. The water droplets act as tiny prisms. Light strikes the outer surface of the droplets and enter the droplet. Now the light ray strikes the inner surface of the droplet and reflects internally instead of refracting and moving out. Now the internally reflected ray strikes the opposite inner surface of the droplet and now refracts and moves out. This ray is dispersed into rainbow’s colors. Multiple refraction and internal refection gives rise to a rainbow.
Answer:
A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
Rainbows can be full circles. However, the observer normally sees only an arc formed by illuminated droplets above the ground,[1] and centered on a line from the sun to the observer's eye.
In a primary rainbow, the arc shows red on the outer part and violet on the inner side. This rainbow is caused by light being refracted when entering a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it.
Explanation: