MCQ
When beryllium is bombarded with $\alpha $-particles, extremely penetrating radiations which cannot be deflected by electrical or magnetic field are given out. These are
  • A
    A beam of protons
  • B
    $\alpha $-rays
  • A beam of neutrons
  • D
    $X-$ rays

Answer

Correct option: C.
A beam of neutrons
c
(c) Neutron is a chargeless particles, so it does not deflected by electric or magnetic field.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The number of structural isomers of alkyne possible for the molecular formula $C_6H_{10}$ are
At $444\,^oC$ , the equilibrium constant $K$ for the reaction $2A{B_{(g)}} \rightleftharpoons {A_{2(g)}} + {B_{2(g)}}$ is $\frac {1}{64}$ . The degree of dissociation of $AB$ will be .....$\%$
In the reaction of hydrogen bromide with an alkene (in the absence of peroxides),  the first step of the reaction is the ................. to the alkene
Given below are two statements:

Statement $I$: Group $13$ trivalent halides get easily hydrolyzed by water due to their covalent nature.

Statement $II$: $\mathrm{AlCl}_3$ upon hydrolysis in acidified aqueous solution forms octahedral $\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$ ion.

In the light of the above statements, choose the correct answer from the options given below :

A buffer solution with $pH$$=9$ is to be prepared by mixing $N{H_4}Cl$ and $N{H_4}OH$. Calculate the number of moles of $N{H_4}Cl$ that should be added to one litre of $1.0\,M\;N{H_4}OH.\,$ $[{K_b} = 1.8 \times {10^{ - 5}}]$
The radius of which ion Is closest to that of $Li^+$ ion?
Glycerol is purified by
For hydrogen atom, energy of an electron in first excited state is $-3.4 \mathrm{eV}, \mathrm{KE}$. of the same electron of hydrogen atom is $\mathrm{x} \mathrm{eV}$. Value of $\mathrm{x}$ is. . . . . . .$\times 10^{-1} \mathrm{eV}$. (Nearest integer)
Which of the following is paramagnetic ?
Total number of stereoisomers of the $1,3$ -dichlorocyclohexane is