
Call 1800-123-2003
"Smartindia is the best online tool for school students." Ms Deepa Chandran, Principal Anchal
"Smartindia is one of the best supplementary education tool for school students." Ms Pooja, Principal
why lightning comes before thunder? |
Lightning is seen before thunder is heard. This is because light travels faster than sound. When lightning occurs, it heats the air to an extreme temperature quickly. This causes the booming sound of thunder. |