Q: Which one of the following correctly describes the principle of the working of an atomic clock?
(a)Vibration of a small quartz crystal
(b)Simple harmonic motion of atoms inside a crystal
(c)Resonant frequency in cesium (or rubidium) atom
(d)Excitation and de-excitation of hydrogen atoms
Correct Answer: (c)
The correct answer is (c) 'यह पृथ्वी से लगभग 10 लाख किलोमीटर दूर, अंतरिक्ष में स्थित है।'. This question from the General Studies domain tests knowledge of Miscellaneous.