P=mvIf it is true how can light have P i.e. momentum 0+without m i.e. mass =0. Thenlight shold have 0 momentum and 0 energy by E=mc^2 + pc - Sandeep Kumar Dash (age 12) kalpakkam, Tamil Nadu, India
A:
This is a question we get very frequently. I'm surprised you didn't find the answer: .
There is one important comment to make on your question. The correct equation is
