Light being amplified by stimulated emission of radiation is the principle of the photoelectric effect
a. True
b. False
Indicate whether the statement is true or false
False
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Resolution: Treat the pupil of your eye as a circular aperture of diameter 3.5 mm. Light of wavelength 500 nm is used to view two point sources that are 283 m distant from you. How far apart must these two point sources be if they are to be just barely resolved by your eye, assuming that the resolution is limited by diffraction?
Fill in the blank(s) with the appropriate word(s).
The figure shows the velocity of a particle as it travels along the x-axis. What is the direction of the acceleration at t = 0.5 s?
A) in the +x direction B) in the -x direction C) The acceleration is zero.
Velma passes Mort at a high speed. Velma and Mort each have identical light-clocks. Mort and Velma both observe both clocks to "tick" simultaneously at 12 noon on both clocks. Mort observes that Velma's next tick occurs
A) only after the second drink. B) after his own clock ticks. C) before his own clock ticks. D) before or after or at the same time as his own tick, depending on Velma's precise speed. E) at the same time as the tick on his clock.
Determining your website's target audience's wants, needs, and expectations is generally a one-time process.
Answer the following statement true (T) or false (F)