If expresses the relationship between Kelvin temperature and the wavelength of maximum intensity in nanometers, what is the wavelength in nanometers of maximum intensity for a star with a surface temperature of 7,250K?
What will be an ideal response?
400
400 nm
400 nanometers
You might also like to view...
During a basketball game, a player shoots a ball from half-court. When the ball reaches a height of 4.5 m above the floor, it is moving at 5.0m/s. If the ball was released from 2.5 m above the floor, what was the angle above the horizontal of the ball’s initial velocity?
a. 
b. 
c. 
d. 
e. 
f. 
Carbon-14 has a half-life of 5730 y. A sample of wood has been recovered by an archaeologist. The sample is sent to a laboratory,
where it is determined that the activity of the sample is 0.144 Bq/g. By comparing this activity with the activity of living organic matter, 0.230 Bq/g, the scientist determines how old the wood sample is, or more precisely, when the tree that the sample came from died. How old is the sample of wood? A) 2940 y B) 3870 y C) 2630 y D) 4250 y E) 4590 y
If two stars are emitting the same amount of light and are the same size, the star that is farther will appear
a. brighter. b. dimmer. c. redder. d. bluer. e. They will have the same brightness as seen from Earth.
How many valence electrons does gallium (Ga, atomic no. = 31) have?
A) 1 B) 6 C) 3 D) 31 E) 70