Questions
A satellite can be in a geo stationary orbit around a planet at a distance r from the centre of the planet. If the angular velocity of the planet about its axis doubles, a satellite can now be in a geostationary orbit around the planet if its distance from the centre of the planet is
detailed solution
Correct option is C
T2∝ r3 ⇒ 2πω2∝r3∴r'r3 = ωω12 = 122 ⇒ r' = r413Talk to our academic expert!
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In a sample of ions, a Li++ ion electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. When the ion gets de-excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ ?
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