Home
Class 11
PHYSICS
The moon is observed from two diametrica...

The moon is observed from two diametrically opposite points A and B on earth. The angle `theta` substended at the moon by the two directions of observation is `1 ^@ 54'.` Given the diameter of earth to be about `1.276xx10^7m,` calculate the distance of moon from earth.

Text Solution

Verified by Experts

The correct Answer is:
`3.845xx10^(8)`m
Promotional Banner

Topper's Solved these Questions

  • PHYSICAL WORLD AND MEASUREMENTS

    SL ARORA|Exercise Based on Deriving relationship|12 Videos
  • PHYSICAL WORLD AND MEASUREMENTS

    SL ARORA|Exercise Based on Significant|15 Videos
  • PHYSICAL WORLD AND MEASUREMENTS

    SL ARORA|Exercise problem|10 Videos
  • Physical world

    SL ARORA|Exercise Exercise|49 Videos
  • PROJECTILE MOTION

    SL ARORA|Exercise Problem For Self Practice|50 Videos

Similar Questions

Explore conceptually related problems

A huge circular container is observed from two diametrically opposite position X and Y on the earth. The angle subtended by the two directions of observations is 1^(@)26'4'' . The diameter of earth is about 1.27xx10^(7)m . What is the distance of container from earth?

What is the average distance of moon from earth ?

The moon is observed from two diametrically extremes A and B on earth. The angle of parallax is found to be 1^@54' . If the diameter of the earth is about 1.276 xx 10^7 m, estimate the distance of the moon from the earth.

The moon subtends an angle of 57 minutes at two diametrically opposite points on earth. Calculate the distance of the moon from the earth. Given, diameter of earth =1.276xx10^7 m .

A distant star is observed from two diametrically opposite points on earth. If both the points are at distance 1.27xx10^(7)m and angle subtended by both the points at star is 0.80'' , calculate the distance between earth and the star.

Assuming the distance of the earth from the moon to be 38,400km and the angle subtended by the moon at the eye of a person on the earth to be 31, find the diameter of the moon.

The angle subtended by the moon's diameter at a point on the earth is about 0.50^(@) . Use this and the fact that the moon is about 384000km away to find the approximate diameter of the moon .

If the distance of the moon from earth is and the period of revolution is T_(m) ,then the mass of the earth is

The moons distance from the earth is 360,000kms and its diameter subtends an angle of 31 at the eye of the observer.Find the diameter of the moon.

SL ARORA-PHYSICAL WORLD AND MEASUREMENTS-problem for self practice
  1. The parallex of a heavenly body measured ffrom two points diametricall...

    Text Solution

    |

  2. The angular diameter of the sun is 1920". If the distance of the sun f...

    Text Solution

    |

  3. The moon is observed from two diametrically opposite points A and B on...

    Text Solution

    |

  4. The radius of a muonic hydrogen atom is 2.5 xx10^(-13)m. What is the t...

    Text Solution

    |

  5. A drop of olive oil of radius 0.3 mm spreads into a rectangular film o...

    Text Solution

    |

  6. Consider a white dwarf and a nutron star beach of one solar mass. The ...

    Text Solution

    |

  7. A neutron star has a density equal to that of nuclear matter (~= 2.8X0...

    Text Solution

    |

  8. Assume that trhe mass of the nucleus is given by M=A m(p), where A in ...

    Text Solution

    |

  9. Find the number of seconds in 1 year. Express them in order magnitude.

    Text Solution

    |

  10. Human heart beats one in 0.8s. Calculate how many times the human hear...

    Text Solution

    |

  11. Two atomic clocks allowend to run for a average life of an indian (s...

    Text Solution

    |

  12. If two celsium clocks differ only by 0.02 s in 200 yaers, what is the ...

    Text Solution

    |

  13. Age of the universe is about 10^(10) years whereas the mankind has exi...

    Text Solution

    |

  14. Deduce dimensional formulae for (i) angle (ii) angular velocity (iii)...

    Text Solution

    |

  15. Obtain dimensions of (i) impulse (ii) power (iii) surface energy (iv) ...

    Text Solution

    |

  16. By the use of dimensions, show that energy per unit volume is equal to...

    Text Solution

    |

  17. Show that angular momentum has the same dimensions as the Planck's con...

    Text Solution

    |

  18. If force (F), length(L) and time (T) as chosen as the fundamental quan...

    Text Solution

    |

  19. Calculate the dimensions of ther force and impulse taking velocity, de...

    Text Solution

    |

  20. Calculate the dimensions of linear momentum and surface tension in ter...

    Text Solution

    |