the photoelectric threshold frequency of metal is v when light of frequency 4v is incident on the metal the maximum kinetic energy of emitted photoelectrons is?
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Explanation:
g = (GM)/r^2, where G is the Universal Gravitational Constant (6.67 x 10^-11 N m^2/kg^2), M is the mass of the Earth (6.0 x 10 ^ 24 kg) and r is the radius of the Earth (approximately 6.4 x 10^6 meters = 6400 km). This equation also works for any distance from the center of the Earth (beyond the surface).
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