Question

The mean life-time of muons at rest is 2.2 micro seconds. The observed mean lifetime
of muons as measured in the laboratory is 6.6 micro seconds. Find
(a) The effective mass of a muon at this speed when its rest mass is 207me; me is
the mass of the electron.
(b) Its kinetic energy and momentum.

Answer 1

Answer:

The Mahājanapadas (Sanskrit: great realm, from maha, "great", and janapada "foothold of a people") were sixteen kingdoms or oligarchic republics that existed in Northern ancient India from the sixth to fourth centuries BCE during the second urbanisation period.[2]