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Q.

Temperature of a block body is 8640 K. If the energy radiated by the black body for all wavelengths lying between 3332 Ao and 3334 Ao is Q 1 and between 3320 Ao and 

3318 Ao is Q2. Then (Wien's constant = 0.288 kelvin - cm) 

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a

Q1=Q2

b

Q1<Q2

c

Q1>Q2

d

Insufficient information

answer is C.

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Detailed Solution

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Wavelength at which maximum radiation takes place is, λ=0.288×1088640 Ao=3333 Ao

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Q1>Q2 option (3) is correct. 

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Temperature of a block body is 8640 K. If the energy radiated by the black body for all wavelengths lying between 3332 Ao and 3334 Ao is Q 1 and between 3320 Ao and 3318 Ao is Q2. Then (Wien's constant = 0.288 kelvin - cm)