Characteristics of Waves: If a wave has a speed of 362 m/s and a period of 4.17 ms, what is its wavelength?
A. 1510 m
B. 1.51 m
C. 86.8 m
D. 86,800 m
E. 0.0115 m
Answer: B
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Which of the following is a planet that is visible to the naked eye from Earth?
A) Saturn B) Uranus C) Neptune D) Keplar 10b
What is the name of the following compound?
CaCl2 A) calcium chloride B) carbon chloride C) dichlorocalcium D) calc two E) dicalcium chloride
Photons of blue light
a. have a greater energy than photons of red light. b. have a greater energy than photons of ultraviolet light. c. have a lower frequency than photons of red light. d. have a longer wavelength than photons of red light. e. travel at a greater speed than photons of red light.
Vision Problems: The power of a lens is 4.0 diopters and its diameter is 5.0 cm. What is the focal length of this lens?
A. 25 cm B. 55 cm C. 10 cm D. 0.25 cm E. 2.5 cm