Home
Class 12
PHYSICS
Assume that light of wavelength 6000A is...

Assume that light of wavelength `6000A` is coming from a star. What is the limit of resolution of a telescope whose objective has a diameter of 100 inch?

Text Solution

Verified by Experts

A 100 inch telescope implies that 2a=100 inch=254cm.Thus if `lamda=6000Å=6xx10^(-5)cm` then`Delta theta~~=(0.61xx6xx10^(-5))/127~~2.9xx10^(-7)` radians
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    NEW JOYTHI PUBLICATION|Exercise SOLUTION TO EXERCISES FROM NCERT TEXT|21 Videos

  • WAVE OPTICS

    NEW JOYTHI PUBLICATION|Exercise PRACTICE PROBLEMS FOR SELF ASSESSMENT|14 Videos

  • SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|37 Videos

Similar Questions

Explore conceptually related problems

Assume that light of wavelength 600 Å is coming from a star. What is the limit of resolution of telescope whose objective has a diameter of 100 inch?

The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in water? Refractive index of water 1.33.

A small telescope has an objective lens of focal length 125 cm and an eyepiece of focal length 2 cm. What is the magnification of the telescope? What is the separation between the objective and eyepiece? Two stars separated by 1' will appear at what separation when viewed through the telescope?

A beam of light of wavelength 590 nm is focused by a converging lens of diameter 10.0 cm at a distance of 20 cm from it. find the diameter of the disc image formed.

A small telescope has an objective lens of focal length 150 cm and eyepiece of focal length 5 cm. What is the magnifying power of the telescope for viewing distant object in normal adjustment? If this telescope is used to view a 100 m tall Also tower 3 km away, what is the height of the image of the tower formed by the objective lens?

A convex lens of diameter 8.0 cm is used to focus a parallel beam of light of wavelength 620 nm. If the light be focused at a distance of 20 cm from the lens, what would be the radius of the central bright spot formed ?

An amateur astronomer wishes to estimate roughly the size of the Sun using his crude telescope consisting of an objective lens of focal length 200 cm and an eyepiece of focal length 10 cm. By adjusting the distance of the eyepiece from the objective, he obtains an image of the Sun on a screen 40 cm behind the eyepiece. the diameter of the sun's image is measured to be 6.0 cm. What is his estimate of the Sun's size given that the average Earth-sun distance is 1.5 xx 10^(11) m ?

A narrow slit S transmitting light of wavelength lamda is placed a distance d above a large plane mirror as shown in figure. The light coming directly from the slit and that coming after the reflection interference at a screen sum placed at a distance LD from the slit. a. What will be the intensity at a point just above the mirror. i.e., just above O? b. At what distance from O does the first maximum occur?

A parallel beam of light of wavelength 100 nm passes through a sample of atomic hydrogengas in ground state (a)Assume that when a photon suppose some of its energy to a hydrogen atom the rest of the energy appears as another photon moving in the same direction as the incident photon Neglecting the light emitted by the excited hydrogen ato in the direction of the incident beam, ? (b) A radiation detector is placed near the gas to detect radiation coming perpenducular to the incident beam find the wevelength of radiation that may be detected by the detector

NEW JOYTHI PUBLICATION-WAVE OPTICS-COMPETITIVE EXAM CORNER
  1. Assume that light of wavelength 6000A is coming from a star. What is t...

    Text Solution

    |

  2. Young's experiment is performed with light of wavelength 6000Å where i...

    Text Solution

    |

  3. In a Young's double slit experiment, the intensity at a point where th...

    Text Solution

    |

  4. A narrow slit of width 2 mm is illuminated by monochromatic light of ...

    Text Solution

    |

  5. In Young's double slit experiment if d, D and lamda represent the dist...

    Text Solution

    |

  6. In Young's double slit experimental set up, it the wavelength alone is...

    Text Solution

    |

  7. Which one of the following statements is correct?

    Text Solution

    |

  8. In Young's double slit experiment with slit separation d, a monochroma...

    Text Solution

    |

  9. Unpolarized light is incident on a plane sheet of water surface. The a...

    Text Solution

    |

  10. If the intensity ratio of two coherent sources used in Young's double ...

    Text Solution

    |

  11. According to Rayleigh scattering law, the amount of scattering is

    Text Solution

    |

  12. When we close one slit in the Young's double slit experiment, then

    Text Solution

    |

  13. A beam of light is incident on a glass slab (mu=1.54) in a direction a...

    Text Solution

    |

  14. The polarising angle for a medium is found to be 60^(@).The critical a...

    Text Solution

    |

  15. In Youngs double slit experiment, to increase the fringe width

    Text Solution

    |

  16. Light of the wavelength 5000Å is incident normally on a slit of width ...

    Text Solution

    |

  17. Two plane wave fronts of light, one incident on a thin convex lens and...

    Text Solution

    |

  18. If a ray of light is incident at a glass surface at the Brewster's ang...

    Text Solution

    |