Author Question: A violet-hot star emits radiation having about twice the peak frequency of radiation from a red-hot ... (Read 73 times)

Chloeellawright · **on:** Jul 29, 2018

A violet-hot star emits radiation having about twice the peak frequency of radiation from a red-hot star. The surface temperature of the hotter star is about

A) half that of the cooler star.
B) twice that of the cooler star.
C) the same.

Question 2

Light at the peak frequency of an incandescent lamp depends on the

A) amount of electrical energy transformed.
B) rate of atomic and molecular vibrations.
C) voltage applied to the lamp.
D) electrical resistance of the lamp.
E) transparency of glass.