Question

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Question:
What is exact speed of light?

NOTE- 300000km/s approx. speed hai.​

Answer 1

Answer:

The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

Explanation:

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Answer 2

Answer:

c=3×10^8ms-1 •E=mc^2

Explanation:

Dekho 3×10^5×10^3 abb iss koo 10^3 ko alag krr loo bcz 1 kilo=10^3 hota hae

abb tumhn pata hae peechay 10^5 mn 5zeroz hain alag krr loo

3×10^5 km/s yaa phir 300000km/s

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