5 km - - mm50-00050050-00-0005-00-000

The correct option is C 50,00,000Using prefix conversions, 1 km = 1000 m 1 mm = 0.001 m ⇒1 km1 mm = 1000 m0.001 m = 10,00,000 ⇒ 1 km=10,00,000 mm ⇒5 km = ...

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Standard IX

Physics

Unit Conversions

5 km = ____ m...

Question

5 km = ____ mm

50,000

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500

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50,00,000

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5,00,000

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Solution

The correct option is C 50,00,000
Using prefix conversions,
$1 k m = 1000 m$
$1 m m = 0.001 m$

$\Rightarrow \frac{1 k m}{1 m m} = \frac{1000 m}{0.001 m} = 10, 00, 000$
$\Rightarrow 1 k m = 10, 00, 000 m m$
$\Rightarrow 5 k m = 5 \times 10, 00, 000 m m$
$= 50, 00, 000 m m$

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5 km = ____ mm

The correct option is C 50,00,000Using prefix conversions, 1 km=1000 m 1 mm=0.001m ⇒1 km1 mm=1000 m0.001 m=10,00,000 ⇒1 km=10,00,000 mm ⇒5 km=5×10,00,000 mm =50,00,000 mm

The correct option is C 50,00,000
Using prefix conversions,
$1 k m = 1000 m$
$1 m m = 0.001 m$

$\Rightarrow \frac{1 k m}{1 m m} = \frac{1000 m}{0.001 m} = 10, 00, 000$
$\Rightarrow 1 k m = 10, 00, 000 m m$
$\Rightarrow 5 k m = 5 \times 10, 00, 000 m m$
$= 50, 00, 000 m m$