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Physics with Akhtiar Ali Bullo
  • 12/2/2023
The period of revolution of a certain planet in an orbit of radius R is T.Its period of revolution in an orbit of radius 4R will be
Kepler's law mcqs
Gravitation mcqs solution
Gravity mcqs solution

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The radius of the moon is 27%of the Earth's radius and its mass is 1.2% of the earth's mass. Find the acceleration due gravity on the surface of moon. How much will a 424N body weight there?
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The mass of moon is 7.34×1022kg and the radius is 1.74×106m.The value of gravitation force will be_Physics class 11 mcqs
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If a wheel of radius 0.5 m is rolling without slipping then its linear distance covered in three revolutions will be
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Currents of 3A and 1.5A flow through two wires , one that has a potential difference of 60V across its ends and another that has a potential difference of 120V across its ends. Compare the rate at which energy pass through each wire
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A current of 6A is drawn from a 120V line,What power is being developed ? How much energy in joule and in kilowatt hour is expended if the current is drawn steadily for one week
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Why electric potential is scalar quantity?
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A silver wire 2m long is to have a resistance of 0.5Ω.what should its diameter be ? Given (ρ=1.52×10^-8Ωm)
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A certain battery is rated at 80 ampere hour.How many coulomb of charge can this battery supply ?
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A woman with a mass of 45kg is standing on a scale in an elevator.The elevator accelerates upward with a constant acceleration of 1.2ms⁻².What is the woman's weight as measured by her in the elevator ?
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Determine the gravitational attraction between the proton and the electron in a hydrogen atom,assuming that the electron describes a circular orbit with a radius of 0.53×10⁻¹⁰ m.mass of electron=9.1×10⁻³¹ kg,mass of proton=1.67×10⁻²⁷ kg
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Compute the gravitational attraction between two college students of mass 80 and 50kg respectively, 2m apart from each other.Is this force worth worrying about?
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Why potential energy (P.E) is scalar quantity ?
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At what distance from the centre of the earth does the gravitational acceleration have one half the value that it has on the earth's surface ?
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What is linear density or mass per unit length
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The mass of the planet Jupiter is 1.9×10 power 27 kg and that of the sun is 2×10 power 30 kg.If the average distance between them is 7.8×10 power 11m.Find the gravitational force of the sun on Jupiter
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A 10kg mass is at a distance of 1m from a 100kg mass.Find the gravitational force of attraction when a) 10kg mass exerts force on the 100kg mass b) 100 kg mass exerts force on the 10kg mass
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