Explanation

During a thunderstorm, the Earth can have a net positive charge on its surface.

This is because the negatively charged clouds above the Earth induce a positive charge on the Earth's surface.

Explanation

Jupiter has the shortest day in the solar system.

It completing one rotation in approximately 9 hours and 56 minutes.

Jupiter is also the fastest spinning planet in the solar system.

Explanation

Explanation

Refraction is the change in the direction of light when it passes from one medium to another.

It is one of the most commonly observed natural phenomena of light.

Optical prisms and lenses involve refraction to redirect light, and so does the eyes of living beings.

Explanation

• Luminous objects are those that emit light of their own.
• Such as the sun, stars, light/electric bulbs, glowsticks, torch, lamps, candle, fire flies, lantern fish and neon tube.
• They produce their own light through various processes like incandescence, fluorescence, or bioluminescence.