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Grade: 12th pass
        
The no. of alpha particles scattered at 600 is 100 per minute in an alpha scattering experiment on gold foil. The no. of aplha particles scattered per minute at 900 will be
  1. 25
  2. 50
  3. 16
  4. 32
     
3 months ago

Answers : (2)

Arun
24712 Points
							
it can be shown that number of particlesNscatteredpervunitareaatthetaangle is directly propotional to 1/ sin^4 ( theta/2)
 
Hence N2/100 = ¼
 
so N2 = 25
3 months ago
Vikas TU
11498 Points
							
Those that passes straight through did so because they didn't encounter any nuclei. The observation that most alpha particles passed straight through the gold foil led Rutherford to conclude that the the positive charge in an atom in concentrated in a very small area, the nucleus. Atoms are mostly empty space
2 months ago
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  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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