Question

A rainbow can be seen in the sky
A.When the sun is in front of you
B.When the sun is behind you
C.When the sun is overhead
D.Only at the time of sunrise

Answer 1

The diffractive nature of refraction and reflection inside the water molecule causes the rainbow effect. The wavelength of the light wave determines the speed of light inside water. When light enters a water droplet, it breaks into its constituent colours.
When the sun shines on raindrops, a rainbow appears in the sky as a natural spectrum of sunshine. The combination of internal reflection and dispersive reflection in rainwater causes this effect.

Complete answer:
Option A: If you look away from the sun and it has recently rained in your location, you might see a rainbow in the sky. The greatest time to observe a rainbow is in the afternoon, when the rain clouds are moving eastward.
So option A is not correct.
Option B: Sunlight-induced rainbows always appear in the sky area directly opposite the sun.
So option B is correct.
Option C: Rain splits the white cloud into its coloured sections, resulting in rainbows. Some lights fall on a drop of water that falls on a droplet, and the colour of the sunlight changes to varying degrees inside the droplet, depending on which one. Wavelength.
So option C is not correct.
Option D: Rainbows are visual representations and weather forecasts created by looking backwards, cycling light, dispersing it into water droplets, and forming lines in the sky. It has the appearance of a rainbow bow. Sunlight-induced rainbows typically occur in the sky directly opposite the sun.
So option D is not correct.

So option B is correct.

Note:
Rainbows have a full circle form, although not everyone thinks it's an arc. Because the rainbow resembles the sun's spherical shape. A round rainbow can be seen from the sky if you fly or use a drone. When the audience sees the rainbow on the ground, they see the top of the horizon; but, when the audience sees the rainbow in the sun, they see the rainbow on the opposite side of the sky, which is clearer and closer to the horizon.