Home
Class 12
PHYSICS
The distance travelled by light in glass...

The distance travelled by light in glass (refractive index =1 .5) in a nanosecond will be

A

45 cm

B

40 cm

C

30 cm

D

20 cm

Text Solution

Verified by Experts

The correct Answer is:
D
Distance ` = v xx y = c/mu xxt`
` = ( 3xx 10^(8))/(1.5) xx 10^(-9) = 0.2 m`
= 20m
Promotional Banner

Topper's Solved these Questions

  • OSCILLATIONS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|29 Videos

  • PRACTICE SET 02

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Paper 1 (Physics)|50 Videos

Similar Questions

Explore conceptually related problems

What is the speed of light in glass of refractive index 1.5 ? Given speed of light in water is 2.25 xx 10^8 m//s and refractive index of water is 1.3 .

The change in the wavelength of light when it travels from air to glass of refractive index 1.5 and the frequency of light 4 xx 10^(14) Hz is

The Optical Path of a ray of light of a given wavelength travelling a distance of 3 cm in flint glass having refractive index 1.6 is same as that on travelling a distance x cm through a medium having refractive index 1.25. Determine the value of x.

A ray of light is travelling from glass to air. ("Refractive index of glass =1.5") . The angle of incidence is 50^(@) . The deviation of the ray is

Q."4 A light ray travels in a glass slab of refractive index mu=2 .Find the time taken by the light ray to travel in the glass slab for a distance of 20sqrt(3)d (Velocity of light =c )

Light propagates 2 cm distance in glass of refractive index 1.5 in time t_(0) . In the same time t_(0) , light propagates a distance of 2.25 cm in medium. The refractive index of the medium is

Light propagates 4 cm distance in glass of refractive index 1.5 in time t_(0) . In the same time t_(0) light propagates a distance of 4.8 cm in a medium. The refractive index of the medium is

A ray of light is incident on a glass slab of refractive index 1.5, making an angle of 40^(@) with the surface. The angle of refraction in glass is

A ray of light is incident on the surface of plate of glass of refractive index 1.5 at the polarising angle. The angle of refraction of the ray will be

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 01-PAPER 1 (PHYSICS & CHEMISTRY)
  1. If T is the surface tension of a liquid, the energy needed to break a ...

    Text Solution

    |

  2. A force of 20N is applied on a body of mass 5 kg resting on a horizont...

    Text Solution

    |

  3. The distance travelled by light in glass (refractive index =1 .5) in a...

    Text Solution

    |

  4. The sources of monochromatic and choherent light beam should be narrow...

    Text Solution

    |

  5. The wavelength of sodium light in air is 5890 Å . The velocity of ligh...

    Text Solution

    |

  6. The number of electric lines of force passing normally through unit ar...

    Text Solution

    |

  7. Three capacitors C(1) , C(2) and C(3) are connected as show in the fi...

    Text Solution

    |

  8. An electron eneters the space between the plates of charged capacitor ...

    Text Solution

    |

  9. The turn ratio of a transformers is given as 2:3. If the current throu...

    Text Solution

    |

  10. Wheaststone bridge is most sensitive when the resistance of all four a...

    Text Solution

    |

  11. A light beam is incident on a rectangular glass plate (mu= 1.54) The r...

    Text Solution

    |

  12. Two unknown resistance X and Y are connected to left and right gaps of...

    Text Solution

    |

  13. The scale of a galvanometer of resistance 100 ohms contains 25 divisio...

    Text Solution

    |

  14. A hydrogen atom emits a photon corresponding to an electron transition...

    Text Solution

    |

  15. Which one is ferromagnetic substance ?

    Text Solution

    |

  16. Resonant frequency is given by (for a series L-C-R circuit)

    Text Solution

    |

  17. What will be the height of image when an object of 2 mm is placed on t...

    Text Solution

    |

  18. A beam of ions with velocity 2xx 10^(5) m/s enters normally into a u...

    Text Solution

    |

  19. An object moving at a speed of 5m/s towards a concave mirror of focal ...

    Text Solution

    |

  20. Binding energy per nucleon plot against the mass number for stable nuc...

    Text Solution

    |