Home
Class 11
PHYSICS
An air bubble in a glass slab with refra...

An air bubble in a glass slab with refractive index 1.5 (near normal incidence ) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face, the thickness (in cm) of the slab is

A

16

B

8

C

10

D

12

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

Convex lens is made of glass of refractive index 1.5 If the radius of curvature of each of the two surfaces is 20 cm find the ratio of the powers of the lens, when placed in air to its power, when immersed in a liquid of refractive index 1.25 .

A ray of light is incident normally on a glass slab of thickness 5 cm and refractive index 1.6. The time taken to travel by a ray from source to surface of slab is same as to travel through glass slab. The distance of source from the surface is

A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges normally from the opposite surface. If the refractive index of the material of the prism is mu , then the angle of incidence is nearly equal to:

In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of 55^(@) with the normal on one face of the slab, after refraction struck the opposite face of the slab before emerging out into air making an angle of 40^(@) with the normal. What value would you assign to the angle of refraction?

In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of 55^(@) with the normal on one face of the slab, after refraction struck the opposite face of the slab before emerging out into air making an angle of 40^(@) with the normal. What value would you assign to the angle of emergence?

In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of 55^(@) with the normal on one face of the slab, after refraction struck the opposite face of the slab before emerging out into air making an angle of 40^(@) with the normal. Draw a labelled diagram to show the path of this ray.

A ray of light incident on a glass slab of refractive index frac(3)(2) , travels a distance of 6 cm in glass in time (t). What will be the distance travelled by the ray in the same time (t) if it travels in air?

Consider a ray of light incident from air onto a slab of glass (reffractive index n) of width d , at an angle theta . The phase difference between the ray reflected by the top surface of the glass and the bottom surface is ,

A light passes through glass slabv of refractive index 1.5 and thickness 2 mm. How much time ray will take to pass through the glass slab ?

Two plano-concave lenses (1 and 2) of glass of refractive index 1.5 have radii of curvature 20 cm and 10 cm. They are placed in contact with their curved surface towards each other and the space between them is filled with liquid of refractive index 4/3. Then the combination is

TARGET PUBLICATION-OPTICS-EXERCISE
  1. A glass cobe is placed on a white paper having spots of red. Blue, yel...

    Text Solution

    |

  2. A plane glass is placed over a various coloured letters (Violet, green...

    Text Solution

    |

  3. An air bubble in a glass slab with refractive index 1.5 (near normal i...

    Text Solution

    |

  4. Two undentical beakers, one filled with water mu = (4)/(3) and the oth...

    Text Solution

    |

  5. In total internal reflection when the angle of incidence is equal to t...

    Text Solution

    |

  6. A diamond sparkles because of its

    Text Solution

    |

  7. A green light is incident from the water to the air-water interface at...

    Text Solution

    |

  8. A light beam is travelling from Region I to Region IV (Refer Figure). ...

    Text Solution

    |

  9. A ray of light passes from a medium A having refractive index 1.6 to t...

    Text Solution

    |

  10. A point object ‘O’ is placed on the axis of a cylindrical piece of gla...

    Text Solution

    |

  11. Focal length of a convex lens is 20 cm and its R.I. is 1.5. It produce...

    Text Solution

    |

  12. An equiconvex lens has power P. It is cut into two symmetrical halves ...

    Text Solution

    |

  13. A plano-convex lens of unknown material and unknown focal length is gi...

    Text Solution

    |

  14. A candle placed 25 cm from a lens forms and image on a screen placed 7...

    Text Solution

    |

  15. Calculate the focal length of a reading glass of a person if his dista...

    Text Solution

    |

  16. A converging beam of rays is incident on a diverging lens. Having pass...

    Text Solution

    |

  17. An object is located 4 m from the first of two thin converging lenses ...

    Text Solution

    |

  18. A person can see clearly objects only when they lie between 50 cm and ...

    Text Solution

    |

  19. Two convex lenses of focal lengths f(1)andf(2) form images with magnif...

    Text Solution

    |

  20. The equiconvex lens has focal length f. If is cut perpendicular to the...

    Text Solution

    |