Home
Class 11
PHYSICS
An optical instrument , in general, exte...

An optical instrument , in general, extends our range of vision by

A

making the incident rays subtend a larger angle at the eye.

B

making the incident rays subtend a larger angle at the eye.

C

producing inverted image.

D

producing real image.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Motion in a plane

    TARGET PUBLICATION|Exercise Exercise|340 Videos

  • RAY OPTICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|16 Videos

Similar Questions

Explore conceptually related problems

In optical instruments, ito minimise the effect of dispersion and obtain clear and will defined images ,

Out of the following optical instruments which one is independent of chronic and spherical aberrations ?

Which of the following instruments in generally used with a galvanometer to show null reading?

Answer the following questions : Observe the following figure and answer the questions : Which optical instrument shows arrangement of lenses as shown in the figure ?

The ability of an optical instrument to show the images of two adjacent point objects as separate is called

Define and describe magnifying power of an optical instrument. How does it differ from Linear Magnification.

Answer the following : How are different sound notes generated in musical instruments like guitar, which uses strings for sound generation, and flute, which uses blown air for sound generation?

Three thin lenses are combined by placing them in contact with each other to get more magnification in an optical instrement. Each lens has a focal length of 3 cm. If the least distance of distinct vision is taken as 25 cm, the total magnification of the lens combination in normal adjustment is

Assertion : Our ears cannot distinguish two notes,one produced by a violin and other by a sitar, if they have exactly the same intensity and same frequency Reason:When a musical instrument is played it produces a fundamental note which is accompanied by number of overtones called harmonics

Ray optics is based on the assumption that light travels in a straight line. Diffraction effects (observed when light propagates through small apertures/slits or around small obstacles) disprove this assumption. Yet the ray optics assumption is so commonly used in understanding location and several other properties of images in optical instruments. What is the justification?

TARGET PUBLICATION-OPTICS-EXERCISE
  1. In presence of aberration, circular image is formed of a point.

    Text Solution

    |

  2. Spherical aberration of a convex and a concave lens respectively is

    Text Solution

    |

  3. An optical instrument , in general, extends our range of vision by

    Text Solution

    |

  4. The least distance of distinc vision for a young adult with normal vis...

    Text Solution

    |

  5. A norml eye is unable to see objects at a distance less than distance ...

    Text Solution

    |

  6. The clearity of image formed on retina of eye depends on the

    Text Solution

    |

  7. A convex lens of the short focal length held very close to the eye, to...

    Text Solution

    |

  8. The magnifying power of simple microscope is

    Text Solution

    |

  9. A perosn using a lens as a simple microscope sees an

    Text Solution

    |

  10. The magnifying power of simple microscope, when image is formed at DDV...

    Text Solution

    |

  11. Magnification of simple microscope when image is at infinity is given ...

    Text Solution

    |

  12. The magnifying power of simple microscope is maximum when image is for...

    Text Solution

    |

  13. When a convex lens of 2.5 cm focal length is used as a magnifying glas...

    Text Solution

    |

  14. The compound microscope is used to see

    Text Solution

    |

  15. Compound microscope is NOT used in

    Text Solution

    |

  16. The focal length of the eye-piece of compound microscope is

    Text Solution

    |

  17. In compound microscope, the intermediate image is

    Text Solution

    |

  18. The length (L) of compound microscope when final image is formed at D....

    Text Solution

    |

  19. When the final image is formed at infinity the magnifying power of com...

    Text Solution

    |

  20. Which of the following is NOT an expression for magnifying power of co...

    Text Solution

    |