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The value of escape speed from the surfa...

The value of escape speed from the surface of earth is

A

0.02

B

0.09

C

0.03

D

0.12

Text Solution

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The correct Answer is:
B
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Mass and radius of a planet are two times the value of earth. What is the value of escape velocity from the surface of this planet?

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An artificial satellite is moving in circular orbit around the earth with speed equal to half the magnitude of escape velocity from the surface of earth. R is the radius of earth and g is acceleration due to gravity at the surface of earth (R = 6400km) Then the distance of satelite from the surface of earth is .

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Gravitational acceleration on the surface of a planet is (sqrt6)/(11)g. where g is the gravitational acceleration on the surface of the earth. The average mass density of the planet is (2)/(3) times that of the earth. If the escape speed on the surface of the earht is taken to be 11 kms^(-1) the escape speed on the surface of the planet in kms^(-1) will be

AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -3
  1. A man in a lift ascending with an upward acceleration a throws a ball ...

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  2. While measuring the acceleration due to gravity by a simple pendulum, ...

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  3. The value of escape speed from the surface of earth is

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  4. In the measurement of volume of solid sphere using the formula V=(4)/(...

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  5. A uniform round object of mass M, radius R and moment of inertia about...

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  6. Resistance of a given wire is obtained by measuring the current flowin...

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  7. In an experiment the valno of refractive index of glass was found to b...

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  8. A physical quantity is represented by X=M^(a)L^(b)T^(-c).If the percen...

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  9. In a simple pendulum experiment, length is measured as 31.4 cm with an...

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  10. Figure shows two capacitors of capacitance 2muF and 4muF and a cell of...

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  11. In an experiment the valno of refractive index of glass was found to b...

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  12. A rectangular metal slab of mass 33.333 g has its length 8.0 cm, bread...

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  13. The distance covered by a body in time (30.0 pm 0.4)m is (6.0pm 0.6)s....

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  14. The measured mass and volume of a body are 53.63 g and 5.8 cm^(3) resp...

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  15. A student performs an experiment for determination of g = (4pi^(2)l)/(...

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  16. An experiment is performed to obtain the value of acceleration due to ...

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  17. A student measured the diameter of a wire using a screw gauge with lea...

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  18. A physical quantity P is related to four observably a,b,c and d as fol...

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  19. The radius of a sphere is 6.01 cm. Its volume to four significant figu...

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  20. The length of a rod is 22.4 m out of it 2.543m is cut out. The remaini...

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