CBSE Class 11-science Answered
S. I unit has been modified such that the speed of light in vacuum is unity.Find out the units of energy and Momentum in this new system.
Asked by tps.mjmdr | 08 Jul, 2018, 05:56: PM
Expert Answer
Let us define the unit c as, 3×108 m/s = 1 c or 1 m/s = (1/3)×10-8 c.
( I am using lower case 'c' to differentiate upper case 'C' which is used for coulomb )
Energy :- 1 Joule = 1 kg×1m/s2 ×1m = 1kg×(m/s)2 = (1/9)×10-16 kg×c2
Momentum :- 1kg × 1 m/s = (1/3)×10-8 kg×c
Answered by Thiyagarajan K | 09 Jul, 2018, 08:18: AM
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