The huge lobe radio galaxy at the center of the Virgo Supercluster is:
A) Virgo X-1.
B) M-87, a giant elliptical galaxy.
C) M-74, a very bright Seyfert Spiral.
D) M-82, disturbed by the passage of M-81 nearby.
E) the Large Magellanic Cloud, disturbed by Supernova 1987A.
B
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The quantum mechanical model of the hydrogen atom requires that if the orbital magnetic quantum number is 3, there will be how many permitted spin magnetic quantum numbers?
a. 2 b. 3 c. 4 d. 6 e. 7
What is the process in which a nucleus of an atom breaks up, emitting subatomic particles and/or energy?
a. radioactive decay b. radioactive isotyping c. unstable atomic nucleus d. electron release e. free radical release
You are given two converging lenses to build a compound microscope. Lens A has focal length 0.50 cm and lens B has focal length of 3.0 cm. Which one of the two lenses would you use for the objective?
A) Lens A, because it has the shorter focal length. B) Lens B, because it has the longer focal length. C) It makes no difference which lens I use for the objective. D) None, because the objective should be a diverging lens.
The bluer the light, the ____ each photon contains
a. more energy b. less energy c. less speed d. more speed e. none of the above