An astronomical telescope has an angular magnification of
An astronomical telescope has an angular magnification of -131. Its objective has a refractive power of 1.75 diopters. Evaluate the refractive power of its eyepiece?
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a diverging lens f -105 centimeter is located 20 centimeter to the left of a converging lens f 31 centimeter a 3
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electromagnetic waves are radiated uniformly in all directions from a source the rms electric field of the waves is
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an astronomical telescope has an angular magnification of -131 its objective has a refractive power of 175 diopters
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i a radioactive sample produces 46035 decays per minute at one point in an experiment and 30809 days later produces 837
determine what fraction of a sample of carbon-14 is left after 214875 yr the half-life of carbon-12 is 5730
compute what period of time is required for a sample of radioactive uranium-235 to lose 99280 percent of its activity
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