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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
The kinetic energy of a body is twice its rest mass energy.
What is the ratio of relativistic mass to rest mass?
Solution
Given: $K = 2m_0c^2$
Total energy $E = K + m_0c^2 = 3m_0c^2$
$E=\gamma m_0 c^2$
$\gamma=3$
Relativistic mass $=\gamma m_0=3m_0$
Ratio $=\frac{m}{m_0}=3$
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