Home
Class 12
PHYSICS
How will you explain twinkling of stars?...

How will you explain twinkling of stars?

Text Solution

Verified by Experts

Stars seem to be twikling due to refractinon of light coming from the stars while passing through earth.s atmosphere. Since earth.s atmosphere is not stationary light from the starts has to pass through fluctuating layers of the various layers of air changing conditions of temperature. As a result the apparent position of a star fluctuates, which gives rise to the twinkling effect of star.
Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    BETTER CHOICE PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS|9 Videos

  • REFRACTION OF LIGHT

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS|36 Videos

  • REFRACTION OF LIGHT

    BETTER CHOICE PUBLICATION|Exercise MOST EXPECTED QUESTIONS|2 Videos

  • REFLECTION OF LIGHT

    BETTER CHOICE PUBLICATION|Exercise NUMERICALS PROBLEMS|7 Videos

  • SEMI CONDUCTOR DEVICES

    BETTER CHOICE PUBLICATION|Exercise Most Expected Questions|6 Videos

Similar Questions

Explore conceptually related problems

How will you explain the three states of matter on the basis of Kinetic Model ?

How do you explain the functionality of a monomer ?

How will you explain that sex hormones are under the control of pitutary glands?

How can you explain higher stability of BCl_(3) as compared to TICI_(3) .

Plants usually show better growth when ammonium sulphate is added to the soil. How would you explain this behaviour?

How will you separate a mixture of mustard oil and water using separating funnel ? Explain with an activity.

The number and kinds of organisms is not constant. How do you explain this statement?

How do you explain the mirage effect produced in very hot deserts?

BETTER CHOICE PUBLICATION-REFRACTION OF LIGHT-SHORT ANSWER TYPE QUESTIONS
  1. What is meant by power of a lens? What does its sign indicate? State i...

    Text Solution

    |

  2. Why diamond is hard while graphite is soft ?

    Text Solution

    |

  3. Write the conditions for total internal reflection to takeplace?

    Text Solution

    |

  4. How will you explain twinkling of stars?

    Text Solution

    |

  5. When does snell's law in refraction fails?

    Text Solution

    |

  6. The sun appears red at sun rise or sunset, why?

    Text Solution

    |

  7. A concave mirror and a convex lens are held separetly in water. What c...

    Text Solution

    |

  8. Answer the following questions: A diver under water, looks obliquely ...

    Text Solution

    |

  9. Write the conditions for total internal reflection to takeplace?

    Text Solution

    |

  10. Derive the expression for the power of two thin lenses placed in conta...

    Text Solution

    |

  11. Explain total internal reflection. What are its conditions?

    Text Solution

    |

  12. Prove the relation ""^(a)mu(b)=1/(""^(b)mu(a))

    Text Solution

    |

  13. State generalized Snell's law of refraction through multiple parallel ...

    Text Solution

    |

  14. Explain total internal reflection. What are its conditions?

    Text Solution

    |

  15. Write the conditions for total internal reflection to takeplace?

    Text Solution

    |

  16. State the condition of total internal reflection. Calculate the speed...

    Text Solution

    |

  17. What are opiates? Give their functions.

    Text Solution

    |

  18. What is the relation between critical angle and refractive index? What...

    Text Solution

    |

  19. What are the uses of optical fibre?

    Text Solution

    |