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प्रश्न
Give one example each of central force and non-central force.
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उत्तर
Examples of central force:
- Gravitational force due to point mass.
- Electrostatic force on the point charge.
Examples of non-central force:
- The nuclear force depends upon the spin of particles.
- Magnetic systems act between two current carrying loops.
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संबंधित प्रश्न
State Kepler's law of orbit and law of equal areas.
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State Kepler's laws of planetary motion.
Let the period of revolution of a planet at a distance R from a star be T. Prove that if it was at a distance of 2R from the star, its period of revolution will be \[\sqrt{8}\] T.
Identify the law shown in the figure and state three respective laws.
Answer the following question in detail.
State Kepler’s three laws of planetary motion.
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The third law of Kepler is also known as the Law of ______.
State Kepler’s laws.
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To verify Kepler's third law graphically four students plotted graphs. Student A plotted a graph of T (period of revolution of planets) versus r (average distance of planets from the sun) and found the plot is straight line with slope 1.85. Student B plotted a graph of T2 v/s r3 and found the plot is straight line with slope 1.39 and negative Y-intercept. Student C plotted graph of log T v/s log r and found the plot is straight line with slope 1.5. Student D plotted graph of log T v/s log r and found the plot is straight line with slope 0.67 and with negative X-intercept. The correct graph is of student
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- none of the three laws of Kepler will be valid.
- only the third law will become invalid.
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The time taken by a planet to orbit the Sun depends on ______.
