Masses of two substances are 1, g and 9, g respectively. If their kinetic energies are same, then ra

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5.Work, Energy, Power and Collision

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Masses of two substances are $1\, g$ and $9\, g$ respectively. If their kinetic energies are same, then the ratio of their momentum will be

A

$1:9$

B

$9:1$

C

$3:1$

D

$1:3$

(AIPMT-1993)

Solution

(d)$\frac{{{P_1}}}{{{P_2}}} = \sqrt {\frac{{{m_1}}}{{{m_2}}}} $$ = \sqrt {\frac{1}{9}} = \frac{1}{3}$

Standard 11

Physics

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