Home
Class 12
PHYSICS
A paperweight in the form of a hemispher...

A paperweight in the form of a hemisphere of radius 3.0 cm is used to hold down a printed page. An observer looks at the page vertically through the paperweight. At what height above the page will the printed letters near the centre appear to the observer ?

Text Solution

Verified by Experts

`(1)/(v)-(1.5)/(-3)=(1-1.5)/(-3)`
`v=-3cm`
Hence, no shifting.
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Exercise1.6|15 Videos

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Exercise1.7|21 Videos

  • GEOMETRICAL OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Exercise1.4|12 Videos

  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS ENGLISH|Exercise dpp 3.3|15 Videos

  • HEATING EFFECT OF CURRENT

    CENGAGE PHYSICS ENGLISH|Exercise Thermal Power in Resistance Connected in Circuit|27 Videos

Similar Questions

Explore conceptually related problems

A glass sphere has radius of 5.0 cm and a refractive index of 1.6. A paperweight is constructed by slicing through the sphere on a plate that is 2.0 cm from the centre of the sphere and perpendicular to radius of the sphere that passes through the centre of the circle formed by the intersection of the plane and the sphere. The paperweight is placed on a table and viewed from directly above an observer who is 8.0 cm from the table top, as shown in figure. When viewed through the paperweight, how far away does the table top appear to the observer?

A printed page is kept pressed to a glass cube (mu=1.5) of edge 6.0 cm. By what amount will the printed letters appear to the shifted when viewed from the top?

A printed page is kept pressed by a glass cube (µ=1.5) of edge 9.0 cm. By what amount will the printed letters appear to be shifted when viewed from the top?

The total area of page is 150 cm^(2) . The combined width of the margin at the top and bottom is 3 cm and the side 2 cm. What must be the dimensions of the page in order that the area of the printed matter may be maximum ?

The total area of a page is 150c m^2dot The combined width of the margin at the top and bottom is 3c m and the side 2cm. What must be the dimensions of the page in order that the area of the printed matter may be maximum?

The total area of a page is 150c m^2dot The combined width of the margin at the top and bottom is 3c m and the side 2cm. What must be the dimensions of the page in order that the area of the printed matter may be maximum?

A glass sphere of (mu=1.5) with a radius of 15.0 cm has a tiny air bubble 5 cm above its centre. The sphere is viewed looking down along the extended radius containing the bubble. What is the apparent depth of the bubble below the surface of the sphere?

A glass sphere having refractive index (3/2) is having a small irregularity at its centre. It is placed in a liquid of refractive index (4)/(3) such that the surface of the liquid is at a distance r above the sphere, where r = 20 cm is radius of the sphere, where r = 20 cm is radius of the sphere. If the irregularity is viewed from above then what is it's distance (in cm) from the centre where eye will observed the irregularity?

A point source of light S is placed at the bottom of a vessel containg a liquid of refractive index 5//3. A person is viewing the source from above the surface. There is an opaque disc of radius 1 cm floating on the surface. The centre of the disc lies vertically above the source S. The liquid from the vessel is gradually drained out through a tap. What is the maximum height of the liquid for which the source cannot at all be seen from above?

A container contains water up to a height of 20 cm and there is a point source at the centre of the bottom of the container. A rubber ring of radius r floats centrally on the water. The ceiling of the room is 2.0 m above the water surface. (a) Find the radius of the shadow of the ring formed on the ceiling if r = 15 cm. (b) Find the maximum value of r for which the shadow of the ring is formed on the ceiling. Refractive index of water =4/3.

CENGAGE PHYSICS ENGLISH-GEOMETRICAL OPTICS-Exercise1.5
  1. A lens(n=1.5) is 5cm thick and the radii of curvature of its object is...

    Text Solution

    |

  2. A spherical surface of radius R ssparates two media of refractive indi...

    Text Solution

    |

  3. A sphere of radius R made of material of refractive index mu(2) is pla...

    Text Solution

    |

  4. A small object of height 0.5 cm is placed in front of a convex surface...

    Text Solution

    |

  5. An object of height 1mm is placed inside a sphere of refractive index ...

    Text Solution

    |

  6. A ray of light on a transparent sphere with centre C as shown in the f...

    Text Solution

    |

  7. A glass sphere, refractive index 1.5 and radius 10cm, has a spherical ...

    Text Solution

    |

  8. One end of a horizontal cylindrical glass rod (mu=1.5) of radius 5.0 c...

    Text Solution

    |

  9. There is small air bubble inside a glass sphere (mu=1.5) of radius 10 ...

    Text Solution

    |

  10. Figure shows a transparent hemisphere of radius 3.0 cm made of a mate...

    Text Solution

    |

  11. A small object is embedded in a glass sphere (mu =1.5) of radius 5.0 c...

    Text Solution

    |

  12. A paperweight in the form of a hemisphere of radius 3.0 cm is used to ...

    Text Solution

    |

  13. Find the image shift if the paperweight is inverted at its place so th...

    Text Solution

    |

  14. A spherical surface of radius 30 cm separates two transparent media A ...

    Text Solution

    |

  15. A point object is above the principal axis in the concave side of a sp...

    Text Solution

    |

  16. A solid hemispherical bowl of radius R, made of glass, is placed on a ...

    Text Solution

    |

  17. A small air bubble in a sphere of glass with radius 4 cm appears to be...

    Text Solution

    |

  18. A horizontal ray of light is incident on a solid glass sphere of radi...

    Text Solution

    |

  19. A converging bundle of rays travel from water (refractive index 4//3 ...

    Text Solution

    |

  20. A parallel incident beam falls on a solid glass sphere at normal inci...

    Text Solution

    |