Home
Class 11
PHYSICS
A comet orbits the sun in a highly ellip...

A comet orbits the sun in a highly elliptical orbit. Which of the following quntities remains constant throughout its orbit ?
(i) Linear Spped (ii) Angular speed
(iii) Angular momentum (iv) Kinetic energy
(v) Potential energy (vi) Total energy

Text Solution

Verified by Experts

For a comet, the value of R is different at different points of its path. So all the quantities from (a) to (f ) have different values. But total angular momentum and total energy are conserved.
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ICSE|Exercise LONG ANSWER QUESTIONS|13 Videos

  • GRAVITATION

    ICSE|Exercise SHORT ANSWER QUESTIONS|27 Videos

  • GRAVITATION

    ICSE|Exercise ADDITIONAL SOLVED PROBLEMS|15 Videos

  • FRICTION

    ICSE|Exercise Selected problems|30 Videos

  • INTERNAL ENERGY

    ICSE|Exercise SELECTED PROBLEMS (FROM HEAT ENGINES)|21 Videos

Similar Questions

Explore conceptually related problems

A comet orbits around the Sun in an elliptical orbit. Which of the following quantities remains constant during the course of its motion?

A comet orbits the Sun in a highly elliptical orbit. Does the comet have a constant (a) linear speed (b) angular speed (c) angular momentum (d) kinetic energy (e) potential energy (f) total energy throughout its orbit? Neglect any mass loss of the comet when it comes very close to the Sun.

If earth is revolving in elliptical orbit around sun, then which of the following quantity remains constant w.r.t.

A planet is revolving around the sun in an elliptical orbit. Which out of the following remains constant. (a) Linear speed (b) angular momentum ( c) kinetic energy (d) potential energy (e) total energy throughout its orbit.

As orbital radius r of a satellite is increased, state which of the following quantities will increase and which will decrease ? (i) Orbital speed (ii) Time period (iii) Frequency (iv) Angular speed (v) Kinetic energy (vi) Potential energy (vii) Total mechanical energy .

Which of the following quantities remain constant in a planetary motion (consider elliptical orbits) as seen from the sun?

Which of the following quantities remain constant in a planetary motion (consider elliptical orbits)as seen from the sun?

The angular momentum of electron in a given orbit is J . Its kinetic energy will be :

The angular momentum of electron in a given orbit is J . Its kinetic energy will be :

A star like the sun has serveral bodies moving around it at different distance. Consider that all of them are moving in circular orbits. Let r be the distance of the body from the centre of the star and let its linear velocity be upsilon , angular velocity omega , kinetic energy K , gravitational potential energy U , total energy E and angular momentum L . As the radius r of the orbit increase, determine which of the above quantities increase and which ones decrease.

ICSE-GRAVITATION-CONCEPTUAL SHORT ANSWER QUESTIONS WITH ANSWERS
  1. A body is taken from equator to pole. What happens to (1) its mass ( 2...

    Text Solution

    |

  2. What will happen to the weight of a body at the equator if earth stops...

    Text Solution

    |

  3. The mass of a body is less in a mine. Is it true?

    Text Solution

    |

  4. What is the height of a synchronous satellite?

    Text Solution

    |

  5. Define gravitational potential and gravitational potential energy.

    Text Solution

    |

  6. A satellite needs no fuel to move round a planet in a stable orbit. Wh...

    Text Solution

    |

  7. What is the maximum value of gravitational potential? Where ?

    Text Solution

    |

  8. Why earth does not fall towards sun due to its attrraction?

    Text Solution

    |

  9. A body is taken to a height equal to radius of earth and then to a dep...

    Text Solution

    |

  10. The space rockets are launched from west to east. Why?

    Text Solution

    |

  11. Explain the reason of weightlessness inside a satellite.

    Text Solution

    |

  12. Explain why (a) there is no atmosphere on moon (b) there is fall i...

    Text Solution

    |

  13. Gravitational force is weak force but still it is considered the most ...

    Text Solution

    |

  14. Do the forces of friction and other contact forces arises due to gravi...

    Text Solution

    |

  15. We can shield a charge from electric fields by putting it inside a hol...

    Text Solution

    |

  16. An astronaut inside a small spaceship orbitting around the earth canno...

    Text Solution

    |

  17. If you compare the gravitational force on the earth due to the sun to ...

    Text Solution

    |

  18. A comet orbits the sun in a highly elliptical orbit. Which of the foll...

    Text Solution

    |

  19. The escape velocity of a body from the earth depends on (i) the mas...

    Text Solution

    |

  20. What are the conditions required for a boyd to become earth's satellit...

    Text Solution

    |