Recent content by prashant.d000

I have question on my own understanding.. So please correct me.. 1. It is said that mass of photon is zero; Or it is so small that it can be neglected without any problems. 2. An object cannot surpass speed of light, because as it approaches to light speed, it's mass increases, and it require...

Theoretically it is said that, tangent touches to a single point on a circle. But If my circle is very big, and large enough, then i think, it should not be a just single point where my tangent is touching, though is will be a very small portion depending on how large is the circle. If i have...