- Home
- Standard 12
- Physics
12.Atoms
easy
A beam of fast moving alpha particles were directed towards a thin film of gold. The parts $A',\;B'$ and $C'$of the transmitted and reflected beams corresponding to the incident parts $A, B$ and $C$ of the beam, are shown in the adjoining diagram. The number of alpha particles in
A
$B'$ will be minimum and in $C'$ maximum
B
$A'$ will be maximum and in $B'$ minimum
C
$A'$ will be minimum and in $B'$ maximum
D
$C'$ will be minimum and in $B'$ maximum
Solution
(b) Because atom is hollow and whole mass of atom is concentrated in a small centre called nucleus.
Standard 12
Physics
