7.Gravitation
easy

यदि पृथ्वी की त्रिज्या को नियत रखते हुये, घनत्व दोगुना कर दिया जाये तो गुरुत्वीय त्वरण हो ........ $m/{s^2}$ जायेगा $(g = 9.8$ मीटर/सैकण्ड ${^2})$

A

$19.6$

B

$9.8$

C

$4.9$

D

$2.45$

Solution

(a) $g \propto \rho $

Standard 11
Physics

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