The thermal radiation from a hot body travels with a speed of

330 m s^{- 1}

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2 \times 10^{8} m s^{- 1}

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1200 m s^{- 1}

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230 m s^{- 1}

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3 \times 10^{8} m s^{- 1}

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Solution

The correct option is E $3 \times 10^{8} m s^{- 1}$
Thermal radiations are infrared radiations. These are basically electromagnetic waves. All electromagnetic waves travel with a speed of $3 \times 10^{8} m / s$ .

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The thermal radiation from a hot body travels with a speed of

The correct option is E 3×108ms−1Thermal radiations are infrared radiations. These are basically electromagnetic waves. All electromagnetic waves travel with a speed of 3×108 m/s.

The correct option is E $3 \times 10^{8} m s^{- 1}$
Thermal radiations are infrared radiations. These are basically electromagnetic waves. All electromagnetic waves travel with a speed of $3 \times 10^{8} m / s$ .