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Three invisible radiations X, Y and Z ar...

Three invisible radiations `X, Y` and `Z` are passed through an electric field. `X` goes straight, `Y` deviates towards the positive end while `Z` deviates towards the negative end. The particles present in `X, Y` and `Z` and the `e//m` ratio for `X` are

A

`A`

B

`B`

C

`C`

D

`D`

Text Solution

Verified by Experts

The correct Answer is:
B
As X goes undeviated in the electric field, we can infer that it consists of chargeless particles (neutrons). Y deviates towards positive end of electric field, it means y consists of negatively charged particles (electrons). Z deviates towards negative end of the electric field, this indicates that Z consists of positively charged particles (protons).
Since X consists of neutrons, charge of neutron = 0 and mass of neutron = 1 u
`:.` e/m for X = 0/1 = 0
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