The invention of the highly accurate atomic clock configuration using cesium resonance was completed by whom? MCQ with Answer and Explanation

The invention of the highly accurate atomic clock configuration using cesium resonance was completed by whom?
A. Albert Einstein
B. Isidor Isaac Rabi
C. Louis Essen and Jack Parry
D. Lord Kelvin
Answer: Option C
Solution (By JKSSB Mock Tests)
Essen and Parry constructed the first highly functional stable cesium atomic clock standard in 1955 at the National Physical Laboratory.

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Practice More Inventions and Discoveries Questions

Question #1
Who discovered that atomic particle configurations include a heavy uncharged component, predicting the Neutron before its physical extraction?
A. J.J. Thomson
B. Niels Bohr
C. James Chadwick
D. Ernest Rutherford

Correct Answer: Option D


Explanation:
Rutherford postulated the existence of a tightly bound proton-electron neutral pair in 1920, which Chadwick later isolated as the neutron.

Question #2
The invention of the common electronic computational methodology known as microprogramming was proposed by whom?
A. Maurice Wilkes
B. John von Neumann
C. Charles Babbage
D. Alan Turing

Correct Answer: Option A


Explanation:
Wilkes formulated microprogramming in 1951 to simplify computer central processing unit development matrix layers.

Question #3
The invention of the seismograph to accurately measure earthquakes was pioneered by which British geologist?
A. Charles Richter
B. James Hutton
C. Alfred Wegener
D. John Milne

Correct Answer: Option D


Explanation:
John Milne invented the modern horizontal pendulum seismograph in 1880 while working in Japan.