Who discovered that the chemical element Chromium is isolated from Siberian red lead ore matrices? MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Inventions and Discoveries Questions
Question #1
Report Error
Who discovered the optical law of refraction independently, which relates the angles of incidence and refraction?
Correct Answer: Option D
Explanation:
Willebrord Snellius formulated the law of refraction (Snell's Law) in 1621, determining refractive index constants.
Willebrord Snellius formulated the law of refraction (Snell's Law) in 1621, determining refractive index constants.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
Report Error
Who discovered the iconic 'Uncertainty Principle' in quantum physics?
Correct Answer: Option A
Explanation:
Werner Heisenberg formulated the principle stating that the position and momentum of a subatomic particle cannot be measured simultaneously with absolute precision.
Werner Heisenberg formulated the principle stating that the position and momentum of a subatomic particle cannot be measured simultaneously with absolute precision.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
Report Error
The electron was discovered in 1897 by which of the following physicists?
Correct Answer: Option C
Explanation:
J.J. Thomson discovered the electron through his experiments with cathode ray tubes in 1897.
J.J. Thomson discovered the electron through his experiments with cathode ray tubes in 1897.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
No comments yet. Be the first to start the discussion!