1.

The wavelength associated with a ball of mass 100 g moving with a speed of 10^(3) cm "sec"^(-1) (h=6.6xx10^(-34)Js^(-1)) is

Answer»

`6.6xx10^(32)cm`
`6.6xx10^(-27)cm`
`6.6xx10^(27)cm`
`6.6xx10^(-32)cm`

Solution :`lamda=h/(mv)=(6.6xx10^(-34)KGMS^(-1))/(100xx10^(-3)kgxx10^(3)xx10^(-2)MS^(-1))`
`=.6xx10^(-32)cm`


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