Zeros between non-zero numbers are significant
Indicate whether the statement is true or false
TRUE
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An atom which has 4 protons and 6 neutrons will be electrically neutral if it contains
A) 4 electrons. B) 6 electrons. C) 10 electrons. D) at least one electron.
A layer of kerosene (n = 1.45) is floating on water (n = 1.33). For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?
What will be an ideal response?
We have already launched spacecraft whose orbits will carry into interstellar space
Indicate whether the statement is true or false
A camera used for aerial surveillance has a lens with a 30-cm maximum aperture and a 42-cm focal length
Assume light of 550-nm wavelength is used and that the resolution of the camera is limited solely by diffraction. What is the angular resolution of the camera at maximum aperture? A) 2.2 µrad B) 1.6 µrad C) 6.3 µrad D) 3.2 µrad E) 4.5 µrad