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.
Question 2
The light-gathering power of a telescope is directly proportional to
a. the diameter of the primary mirror or lens.
b. the focal length of the primary mirror or lens.
c. the ratio of the focal lengths of its primary mirror or lens and its eyepiece.
d. the length of the telescope tube.
e. the diameter of the eyepiece.
Body plan of an echinoderm, as represented by a sea star.
Went and Briggs demonstrated the relationship between light perception and auxin function.
An overview of photosynthesis: cooperation of the light reactions and the Calvin cycle.
Relative Size of the Body’s Fluid Compartments
The biochemical reactions of near-infrared light
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.