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A 100-W incandescent light bulb has a cylindrical tungsten filament 26.0 cm long, 0.35 mm in...

A 100-W incandescent light bulb has a cylindrical tungsten filament 26.0 cm long, 0.35 mm in diameter, and with an emissivity of 0.28.

(A) What is the temperature of the filament?

(B) For what wavelength does the spectral emittance of the bulb peak?

(C) Incandescent light bulbs are not very efficient sources of visible light. Explain why this is so.

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Expert Solution

genius_generous answered 1 month ago
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