1.

Change on two particle is 3q and 2q respectivley.Their mass is 2m and 3m respectively.Both are accelerated under same potential difference .Ratio of their de-Broglie wavelength will be….

Answer»

`2:3`
`3:2`
`1:`
`1:1`

SOLUTION :In `lambda=(h)/(sqrt(2mVq))`,h,2 and V are same.
`THEREFORE lambda prop (1)/(sqrt(mq))`
`therefore (lambda_(1))/(lambda_(2))=sqrt((m_(2)q_(2))/(m_(1)q_(1)))=sqrt((3m)/(2M)xx(2q)/(3q))=sqrt(1)`
`therefore (lambda_(1))/(lambda_(2))=1:1`


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