Alpha Coaching Centre

10/02/2017

GK

30/07/2016

When something wasn't right, Go left👈👈

14/07/2016

14/07/2016

Suppose I had two identical watches, set to the same time. I throw one up in the air and catch it. The other I hold in my hand. Which one shows the later time.

There's a good chance that he'll answer that the one thrown in the air went on a journey, and therefore was the "traveling twin", and therefore the one in your hand aged more, and so the one in your hand shows the later time.

If he does answer this, he's dead wrong, so ask him this question:

Suppose you were on a steadily accelerating spaceship and you had two identical watches. You kept one in your hand and you threw the other up ahead of you, so you the spaceship would eventually accelerate you up to it and you would catch it. Now which one shows the later time.

Since gravity is equivalent to an acceleration, the answer must be the same in both cases, but physicists have a strong tendency to give different answers. The reason is that they think of the man on earth as being an unaccelerated reference frame when it actually is accelerated by g.

19/03/2016

GoOd morning Physics Lovers!

Go on a trip!

Let's start chat!

04/03/2016

Hlow guys! exm kaisa ja rha hy??

14/02/2016

Valentine's day! Pehele padhai fir Aur kuch!