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A particle moves with a speed of 1.5 xx1...

A particle moves with a speed of `1.5 xx10^(8)` m/s. The ratio of its mass to its rest mass is

A

1.1

B

1.5

C

2.5

D

5.2

Text Solution

Verified by Experts

The correct Answer is:
A
`m=m_(0)sqrt(1-v^(2)/c^(2))`
`:. m/m_(0)=1/sqrt(1-((1.5xx10^(8))/(3xx10^(8)))^(2))=1/sqrt(0.75)`
`=1.1`
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