Radius of earth is 6378100 metre. Convert it into standard form: - Vidyadip

MCQ

Radius of earth is $6378100$ metre. Convert it into standard form:

A
$6.3781 \times 10^8m$
B
$6.3781 \times 10^7m$
✓
$6.3781 \times 10^6m$
D
$6.3781 \times 10^9m$

✓

Answer

Correct option: C.

$6.3781 \times 10^6m$

C. $6.3781 \times 10^6m$
Solution:
$6378100 = 6378 \times 100$
$= 6.3781 \times 10^4 \times 10^2$
$= 6.3781 \times 10^6m$

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