Rutherford's alpha-ray scattering experiment led to the discovery of the nucleus and to the conclusion that an atom consists of large empty space. Arrange the following steps in sequence which explains the experiment and also the above mentioned conclusions. (a) To make out the observations a spherical ZnS screen was placed surrounding the gold foil. (b) The substance which acts as a source of alpha-particles is taken in a lead container and made to pass through a slit between like charged positive plates. (c)It was observed that most of the particles passed straight through the gold foil, few were deflected through small angles and very few through large angles. Very very few completely rebounded . (d) A narrow, condensed beam consisting of alpha-particles is made ot bombard on a thin a gold foil.

Rutherford's alpha-ray scattering experiment led to the discovery of t

1.	Rutherford's alpha-ray scattering experiment led to the discovery of the nucleus and to the conclusion that an atom consists of large empty space. Arrange the following steps in sequence which explains the experiment and also the above mentioned conclusions. (a) To make out the observations a spherical ZnS screen was placed surrounding the gold foil. (b) The substance which acts as a source of alpha-particles is taken in a lead container and made to pass through a slit between like charged positive plates. (c)It was observed that most of the particles passed straight through the gold foil, few were deflected through small angles and very few through large angles. Very very few completely rebounded . (d) A narrow, condensed beam consisting of alpha-particles is made ot bombard on a thin a gold foil.
Answer» a c b d b c a d d b a c b d a c Solution :(i) Radioactive substance which acts as a source of `alpha`-particle is taken in a lead container and MADE to pass through a slit between like charged POSITIVE plates. (ii) A NARROW, condensed BEAM consisting of `alpha`-particle are made to collide a thin gold foil. (iii) To make out observation a spherical ZnS Screen was PLACED surrounding the gold foil. (iv) It was observed that most of the particles passed straight through the gold foil, few were deflected through small angles and very few through large angles .Very few were completely rebounded.