Telescope objective to resolve a moon crater
When the distance from the Earth to the Moon is around 3.8 x 10^8 m, then what diameter would be needed for a telescope objective to resolve a Moon crater 300 m in diameter? Suppose that a wavelength be 500 nm.
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At what rate should the potential difference among the plates of a parallel-plate capacitor having a 1.8 µF capacitance be changed to generate a displacement current of 2.2 A?
Compute the limiting angle of resolution for the eye, supposing a pupil diameter of around 2.00 mm, a wavelength of 500 nm in air, and the index of refraction for the eye of 1.33.
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A cosmic-ray proton in interstellar space consists of energy of around 10.0 MeV and executes a circular orbit having a radius equivalent to that of Mercury’s orbit around the sun (5.80 x 1010 m). Determine the magnetic field in that area of s
The magnetic field of around 0.800 T is directed parallel to the plane of the loop. (i) Compute the magnetic moment of the loop. (ii) Determine the magnitude of the torque applied on the loop through the magnetic field?
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