When light enters glass from air, which of these properties of the light change?
a. frequency c. speed
b. wavelength d. all of the above
B, C
You might also like to view...
Simple observations of the darkness of the night sky and the redshifts of the galaxies tell you that:
A) the Universe is contracting. B) the Universe must have an edge. C) the Universe is perfect and unchanging. D) the Universe must have had a beginning.
In an ionic material, the ______________potential is the attractive energy between ions.
Fill in the blank(s) with the appropriate word(s).
Collisions in Two Dimensions: A 1500-kg car traveling at 90 km/h toward the east suddenly collides with a 3000-kg car traveling at 60 km/h toward the south. The two cars stick together after the collision. What is the direction of motion of the cars after collision?
A. 36.9° S of E B. 36.9° E of S C. 53.1° S of E D. 53.1° E of S
What type of observation can astronomers use to measure the composition of an extrasolar planet's atmosphere?
A) comparisons of a star's spectrum when a planet is in transit versus when it is eclipsed B) measurements of the host star's velocity throughout an orbital cycle C) measurement of how frequently the planet blocks the host star's light D) combination of a transit observation and a Doppler shift measurement