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If the radius of earth is …

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If the radius of earth is 640km what will be it's order of magnitude

Posted by Khushi Ojha 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Deep Singer Vekariya 4 years, 3 months ago

Madarchood Teri gannd me mera loda

Parthiv Patel 4 years, 3 months ago

answer : 10^7 m is the order of magnitude of the radius of the earth. explanation : order of magnitude :- it is used scientific notation. if any number X in such a way that X = m × 10^n , where m belongs to then, 10ⁿ is known as order of magnitude. here given, earth's radius 6400 km it can be written as 6400000m [ as we know, 1 km = 1000m] so, 6400 km = 6400000 m now, 6400000m = 0.64 × 10^7 m here you can see √10/10 ≤ 0.64 ≤ √10 so, 10^7m is the order of magnitude. Thanku

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