How much is the mass of the moon when compared with that of the earth? /पृथ्वी की तुलना में चंद्रमा का द्रव्यमान कितना है?

How much is the mass of the moon when compared with that of the earth? /पृथ्वी की तुलना में चंद्रमा का द्रव्यमान कितना है?

  1.  1/49
  2.  1/81
  3.  1/51
  4.  1/8

Answer / उत्तर :-

 1/81

 

 

 

Explanation / व्याख्या :-

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