The speed of light in vacuum is

$3 \times 10^{8}$ metre per second

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$4 \times 10^{8}$ metre per second

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$5 \times 10^{8}$ metre per second

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$6 \times 10^{8}$ metre per second

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Solution

The correct option is A
$3 \times 10^{8}$ metre per second

The speed of light is maximum in vacuum. It is equal to $3 \times 10^{8}$ metre per second.

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The speed of light in vacuum is

The correct option is A 3×108 metre per second The speed of light is maximum in vacuum. It is equal to 3×108 metre per second.

The correct option is A
$3 \times 10^{8}$ metre per second

The speed of light is maximum in vacuum. It is equal to $3 \times 10^{8}$ metre per second.