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Q 1173178946.     The velocities of two particles `A` and `B` are `0.05` amd `0.02 ms^-1` respectively.The mass of `B` is five times the mass of `A`. The ratio of their de-broglie's wavelength is

EAMCET 2008
A

`2:1`

B

`1:4`

C

`1:1`

D

`4:1`

HINT

Use `lambda=h/(mv)`

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