A 100-W incandescent light bulb has a cylindrical tungstenfilament 26.0 cm long, 0.35 mm in diameter, and with an emissivityof 0.28.
(A) What is the temperature of the filament?
(B) For what wavelength does the spectral emittance of the bulbpeak?
(C) Incandescent light bulbs are not very efficient sources ofvisible light. Explain why this is so.
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
(Save $1 )
One time Pay
(Save $5 )
Billed Monthly
*First month only
You can see the logs in the Dashboard.