If the temperature of the sun becomes twice its present temperature, then

Radiated energy would be predominantly in infrared

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Radiated energy would be predominantly in ultraviolet

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Radiated energy would be predominantly in X-ray region

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Radiated energy would become twice the present radiated energy

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Solution

The correct option is B
Radiated energy would be predominantly in ultraviolet

The wavelength corresponding to maximum emission of radiation from the sun is $λ_{m a x} = 4753 A$ (close to the wavelength of violet colour of visible region). Hence if temperature is doubled lm is decreased $(λ_{m} \propto \frac{1}{T})$ i.e. mostly ultraviolet radiations emits.

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