An ultraviolet light wave has a wavelength of 300 nm and speed of 1.8 × 10^8 m/s through a transparent medium. What is the frequency of this wave in the medium? (1 nm = 10-9 m and c = 3.00 × 10^8 m/s)
a. 7.0 × 10^14 Hz
c. 6.3 × 10^2 Hz
b. 6.0 × 10^14 Hz
d. 10 × 10^14 Hz
B
You might also like to view...
In which case would the net force due to water pressure on a solid object be greater?
(i) when the object is in water at 100-meter depth (ii) when the object is in water at 200-meter depth
1.(i) 2.(ii) 3.Choices (i) and (ii) would have the same net force due to the water on them. 4.It depends on the orientation of the object.It is late and Carlos is sliding down a rope from his third-floor window to meet his friend Juan. As he slides down the rope faster and faster, he becomes frightened and grabs harder on the rope, increasing the tension in the rope. As soon as the upward tension in the rope becomes equal to his weight:
a. Carlos will stop. b. Carlos will slow down. c. Carlos will continue down at a constant velocity. d. the rope must break.
The overall dimming of starlight by interstellar matter is called:
A) extinction. B) reddening. C) absorption. D) emission. E) scattering.
The Phanerozoic eon is divided into three main
A) epochs B) periods C) eras D) ages