In Geiger-Marsden experiment detection of 
-particles scattered at a particular angle is done by
A
counting flashes produced by 
-particles on a ZnS coated screen
-particles on a ZnS coated screen B
counting spots produced on a photographic film
C
using a galvanometer detector
D
using a Geiger-counter
Text Solution
Verified by ExpertsThe correct answer is:
A
The scattered 
-particles were observed through a rotatable detector consisting of zinc sulphide screen and a microscope. The scattered 
-particles on striking the screen produced brief light flashes or scintillations. These flashes may be viewed through a microscope and the distribution of the number of scattered particles may be studied as a function of angle of scattering.
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