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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ९

The third law of Kepler is also known as the Law of ______. - Science

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प्रश्न

The third law of Kepler is also known as the Law of ______.

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उत्तर

The third law of Kepler is also known as the Law of Harmonies 5.8.

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पाठ 9: Universe - Exercise [पृष्ठ १११]

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सामाचीर कलवी Science [English] Class 9 TN Board
पाठ 9 Universe
Exercise | Q II. 4. | पृष्ठ १११

संबंधित प्रश्‍न

A Saturn year is 29.5 times the earth year. How far is the Saturn from the sun if the earth is 1.50 ×108 km away from the sun?


Answer the following question.

State Kepler’s law of equal areas.


Answer the following question.

State Kepler’s law of the period.


The mass and radius of earth is 'Me' and 'Re' respectively and that of moon is 'Mm' and 'Rm' respectively. The distance between the centre of the earth and that of moon is 'D'. The minimum speed required for a body (mass 'm') to project from a point midway between their centres to escape to infinity is ______.


A planet revolves in an elliptical orbit around the sun. The semi-major and minor axes are a and b, then the time period is given by:


Supposing Newton’s law of gravitation for gravitation forces F1 and F2 between two masses m1 and m2 at positions r1 and r2 read F1 = – F2 = `- r_12/r_12^3 GM_0^2 ((m_1m_2)/M_0^2)^n` where M0 is a constant of dimension of mass r12 = r1 – r2 and n is a number. in such a case.

  1. the acceleration due to gravity on earth will be different for different objects.
  2. none of the three laws of Kepler will be valid.
  3. only the third law will become invalid.
  4. for n negative, an object lighter than water will sink in water.

Give one example each of central force and non-central force.


Out of aphelion and perihelion, where is the speed of the earth more and why?


What is one practical use of Kepler’s laws?


The time taken by a planet to orbit the Sun depends on


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