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Standard XII

Physics

Blackbody

Assertion :Hi...

Question

Assertion :Higher the wavelength, higher is the energy of radiation. Reason: Energy = $h v [v = \frac{C}{λ}]$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is D Assertion is incorrect but Reason is correct
Owing to the Planck's equation, energy is inversely proportional to wavelength.

$E = \frac{h c}{λ}$ .

Hence, as wavelength increases, energy decreases.

Option D is correct.

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Assertion :Higher the wavelength, higher is the energy of radiation. Reason: Energy = hv [v=Cλ].

The correct option is D Assertion is incorrect but Reason is correctOwing to the Planck's equation, energy is inversely proportional to wavelength.E=hcλ. Hence, as wavelength increases, energy decreases.Option D is correct.

Assertion :Higher the wavelength, higher is the energy of radiation. Reason: Energy = $h v [v = \frac{C}{λ}]$ .

The correct option is D Assertion is incorrect but Reason is correct
Owing to the Planck's equation, energy is inversely proportional to wavelength.

$E = \frac{h c}{λ}$ .

Hence, as wavelength increases, energy decreases.

Option D is correct.