Question
Download Solution PDFElectron was discovered by _________.
Answer (Detailed Solution Below)
Option 2 : J. J. Thomson
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All India Agniveer Army GD: Ultimate Live Test - 04
50 Qs.
100 Marks
60 Mins
Detailed Solution
Download Solution PDFCONCEPT:
- The discovery of the electron is credited to J J Thomson.
- Electron is a negatively charged particle.
- The below table shows the discovery of other subatomic particles also:
| Discoverer | Year of Discovery | |
| Proton | E. Rutherford | 1909 |
| Neutron | James Chadwick | 1932 |
| Electron | J.J. Thomson | 1897 |
EXPLANATION:
- The discovery of the electron is credited to J J Thomson.
- The scientist searched cathode rays for the carrier of the electrical properties in the matter which leads to the discovery of the electron particles.
- So the correct answer is option 2.
Latest Indian Coast Guard Navik GD Updates
Last updated on Jul 4, 2025
-> The Indian Coast Guard Navik GD Application Correction Window is open now. Candidates can make the changes in the Application Forms through the link provided on the official website of the Indian Navy.
-> A total of 260 vacancies have been released through the Coast Guard Enrolled Personnel Test (CGEPT) for the 01/2026 and 02/2026 batch.
-> Candidates can apply online from 11th to 25th June 2025.
-> Candidates who have completed their 10+2 with Maths and Physics are eligible for this post.
-> Candidates must go through the Indian Coast Guard Navik GD previous year papers.