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).
4.9 × 10-2 m
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Rust has a tendency to form when iron in contact with water reacts according to the following reaction: 4 Fe + 3 O2 ? 2 Fe2O3 A) Iron is being oxidized. B) Oxygen is being oxidized. C) Oxygen is being reduced. D) Iron is being reduced. E) none of the above
A 150-W light bulb is designed to operate at 110 V dc. How much current does it draw?
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The daytime surface temperature of Mercury is higher than Earth's Moon's surface temperature because
a. clouds shield the Earth's Moon during the day. b. Mercury is farther from the Sun than the Earth's Moon. c. Mercury is closer to the Sun than the Earth's Moon. d. the atmosphere of the Earth's Moon has a strong greenhouse effect.
Gold is rare since the only time it can be formed is during a supernova
Indicate whether the statement is true or false