In order of decreasing frequency, which of the following is correct?
a. infrared, visible, ultraviolet, and gamma
b. gamma, ultraviolet, visible, and infrared
c. visible, radio, ultraviolet, and X-ray
d. visible, gamma, ultraviolet, and X-ray
B
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Faraday's law tells us that
A) moving charges create magnetic fields. B) charges create electric fields. C) a changing magnetic field creates an electric field. D) a changing electric field creates a magnetic field. E) magnetic fields create electric fields.
A converging lens
A. refracts all light toward the focal point. B. always has two curved surfaces. C. always has a real image. D. is thicker in the center than the edges.
Astronomers knew for some time that the rings of Saturn are thin, because they could see stars through the rings.
Answer the following statement true (T) or false (F)
Because more massive stars have more gravitational energy, they can fuse heavier nuclear fuels
Indicate whether the statement is true or false