Who discovered the law of electromagnetic induction in 1831? MCQ with Answer and Explanation

Who discovered the law of electromagnetic induction in 1831?
A. Hans Christian Ørsted
B. James Clerk Maxwell
C. Michael Faraday
D. Heinrich Hertz
Answer: Option C
Solution (By JKSSB Mock Tests)
Michael Faraday discovered electromagnetic induction, leading to the development of electric generators and transformers.

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Practice More Inventions and Discoveries Questions

Question #1
Who discovered the planet Ceres, the first recognized asteroid, in 1801?
A. Heinrich Olbers
B. Johannes Kepler
C. Giuseppe Piazzi
D. William Herschel

Correct Answer: Option C


Explanation:
Italian astronomer Giuseppe Piazzi discovered Ceres on January 1, 1801, initially cataloging it as a new comet or planet.

Question #2
Who discovered that the element Thorium is radioactive, independently of Marie Curie's tracking experiments?
A. Ernest Rutherford
B. Henri Becquerel
C. Otto Hahn
D. Gerhard Carl Schmidt

Correct Answer: Option D


Explanation:
Gerhard Carl Schmidt discovered thorium's radioactivity in 1898, publishing his findings just weeks before Marie Curie.

Question #3
Who discovered the primary biological pattern detailing that DNA nucleotide bases match in specific pairs ($A=T, G=C$)?
A. Rosalind Franklin
B. James Watson
C. Francis Crick
D. Erwin Chargaff

Correct Answer: Option D


Explanation:
Chargaff's Rules established the 1:1 stoichiometric ratios of purines to pyrimidines, providing a key clue for Watson and Crick's model.