In Rutherford's gold foil experiment, thin sheets of gold foil was bombarded with _________ to understand the nuclear model of atom.

  1. alpha particles
  2. beta particles
  3. gamma particles 
  4. x rays

Answer (Detailed Solution Below)

Option 1 : alpha particles
Free
NDA 01/2025: English Subject Test
5.6 K Users
30 Questions 120 Marks 30 Mins

Detailed Solution

Download Solution PDF

CONCEPT:

  • The Gold Foil Experiment: A very thin sheet of gold foil was bombarded with alpha particles.
    • The experiment result of the Bombardment of gold foil with alpha particles showed that a very small part of alpha particles was deflected.
    • This experiment showed that the atom consists of a small and dense positively charged interior surrounded by a cloud of negative charge electrons.

Physics ST 3 Group X jitendra kumar D3

Figure (A) The experimental setup for Rutherford's gold foil experiment

Figure (B) Rutherford found that a small percentage of alpha particles were deflected at large angles

EXPLANATION:

  • In Rutherford's Gold foil, alpha-particle scattering experiment, Very thin sheets of gold foil were bombarded with fast-moving alpha particles.
  • Since alpha particles are positive charge ions, He used them to know the exact position of positive charge inside the atom.
  • He found a very small, dense, positively-charged nucleus at its center (bottom).
  • So the correct answer is option 1.
Latest NDA Updates

Last updated on Jun 18, 2025

->UPSC has extended the UPSC NDA 2 Registration Date till 20th June 2025.

-> A total of 406 vacancies have been announced for NDA 2 Exam 2025.

->The NDA exam date 2025 has been announced. The written examination will be held on 14th September 2025.

-> The selection process for the NDA exam includes a Written Exam and SSB Interview.

-> Candidates who get successful selection under UPSC NDA will get a salary range between Rs. 15,600 to Rs. 39,100. 

-> Candidates must go through the NDA previous year question paper. Attempting the NDA mock test is also essential. 

Get Free Access Now
Hot Links: teen patti 51 bonus teen patti pro teen patti 100 bonus teen patti club teen patti party