Home
Class 12
PHYSICS
Light travels in two media A and B with ...

Light travels in two media A and B with speeds `1.8 × 10^(8) m s^(–1) and2.4 × 10^(8) m s^(–1)` respectively. Then the critical angle between them is

A

`sin^(-1)(2/3)`

B

`tan^(-1)(3/4)`

C

`tan^(-1)(2/3)`

D

`sin^(-1)(3/4)`

Text Solution

Verified by Experts

The correct Answer is:
D

(d) We have,
`C=sin^(-1)(v_(1)/v_(2))=sin^(-1)(3/4)`
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    DC PANDEY|Exercise medical entrance special format question|25 Videos
  • RAY OPTICS

    DC PANDEY|Exercise Medical entrance gallary|76 Videos
  • RAY OPTICS

    DC PANDEY|Exercise Checkpoint 9.7|10 Videos
  • NUCLEI

    DC PANDEY|Exercise C MADICAL ENTRANCES GALLERY|46 Videos
  • REFLECTION OF LIGHT

    DC PANDEY|Exercise Subjective|9 Videos

Similar Questions

Explore conceptually related problems

The velocities of light in two different mediums are 2xx10^(8) ms^( -1) and 2.5xx10^(8) ms^(-1) respectively. The critical angle for there mediums is

When a ray of light travels from medium A to medium B , its speed increases from 2 xx 10^(8) m/s to 2.4xx10^(8) m/s . What is the sine of the critical angle for the two media ?

Light propagates with speed of 2.2 xx 10^( 8) m//s and m/s 2.4 xx10 ^(8)´ in the media P and Q respectively. The critical angle of incidence for light undergoing reflection from P and Q is

The velocities of light in two different media are 2* 10^8 m/s and 2.5 * 10^8 m/s respectively.The critical angle for these media is sin^(-1)((1)/(5)) sin^(-1)((4)/(5))

Light ray is travelling from a denser medium into a rarer medium. The velocity of light in the denser and rarer medium is 2 xx 10^(8) m/sec and 2.5 xx 10^(8) m / sec. The critical angle of the two media is

The speed of light in water and diamond is 2.25 xx 10^(8) m//s and 1.25 xx 10^(8) m//s respectively. What is the refractive index of : water w.r.t. diamond?

The velocities of light in ice and diamond are 2.3 xx 10^(8)m//s and 1.25 xx 10^(8) m//s respectively. The R.I. of diamond with respect to ice is

The speed of light in media M_1 and M_2 are 1.5 xx 10^8 m//s and 2.0 xx 10^8 m//s respectively. A ray of light enters from medium M_1 to M_2 at an incidence angle i . If the ray suffers total internal reflection, the value of i is.

If the speed of light in glass and water are 2 xx 10^8 m/s and 2. 25 xx 10^8 m/s repsectively, then the refrectve index of the water with respect to the glass is

The speed of light in water and glass is 2.2 xx 10^(8) m//s and 2 xx 10^(8) m//s respectively. What is the refractive index of (i) water with respect to glass ( ii) glass with respect to water ?

DC PANDEY-RAY OPTICS-Exercise
  1. We combined a convex lens of focal length f(1) and concave lens of foc...

    Text Solution

    |

  2. Wavelength of light in vaccum is 5890 Å, then its wavelength in glass ...

    Text Solution

    |

  3. Light travels in two media A and B with speeds 1.8 × 10^(8) m s^(–1) a...

    Text Solution

    |

  4. The focal length of a thin convex lens for red and blue colours is 100...

    Text Solution

    |

  5. Two mirrors are placed at right angle to each other. A man is standing...

    Text Solution

    |

  6. To get three images of a single object, one should have two plane mirr...

    Text Solution

    |

  7. If two mirrors are keps at 60^circ to each other, then the number of i...

    Text Solution

    |

  8. If the focal length of the ey piece of the telescope is doubled, then ...

    Text Solution

    |

  9. Angular resolving power of human eye is

    Text Solution

    |

  10. If the red light is replaced by blue light illuminating the object in ...

    Text Solution

    |

  11. A telescope using light having wavelength 5000 Å and using lenses of f...

    Text Solution

    |

  12. An astronomical telescope in normal adjustment receives light from a d...

    Text Solution

    |

  13. An astronomical telescope has an angular magnification of magnitude 5 ...

    Text Solution

    |

  14. Magnification produced by astronominal telescope for normal adjustment...

    Text Solution

    |

  15. Where should a person stand straight from the pole of a convex mirror ...

    Text Solution

    |

  16. The radius of curvature of the curved surface of a plano-convex lens i...

    Text Solution

    |

  17. Wavelength of given light waves in air and in a medium are 6000 Å and ...

    Text Solution

    |

  18. A convex and a concave mirror of radii 10 cm are placed facing each ot...

    Text Solution

    |

  19. The focal lengths of the lenses of an astronomical telescope are 50cm ...

    Text Solution

    |

  20. An object 5 cm tall is placed 1 m from a concave spherical mirror whic...

    Text Solution

    |