Home
Class 12
PHYSICS
Dielectric constant = 4 and relative per...

Dielectric constant = 4 and relative permeability = 1. Find angle of TIR (`theta_c`)

A

10

B

20

C

30

D

60

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS SECTION B|30 Videos
  • JEE MAIN 2023

    JEE MAINS PREVIOUS YEAR|Exercise Question|455 Videos

Similar Questions

Explore conceptually related problems

A wave is propagating in a medium of dielectric constant 2 and relative permeability 50 . The wave impedance is

A wave is propagating in a medium of electric dielectric constant 2 and relative magnetic permeability 50 . The wave impeldance of such a medium is

The figure shows two identical parallel plate capacitors connected to a battery with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant(or relative permittivity) 3. Find the ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric.

The speed of em wave in the unit of 10^8m//s , in a medium of dielectric constant 2.25 and relative permeablity 4 is:

A parallel plate capacitor having a separation between the plates d, plate area A and material with dielectric constant K has capacitance C_(0) . Now one-third of the material is replaced by another material with dielectric constant 2K, so that effectively there are two capacitors one with area 1/3A, dielectric constant 2K and another with area 2/3A and dielectric constant K. If the capacitance of this new capacitor is C then (C)/(C_(0) is

In a liquid medium of dielectric constant K and of spherical gravity 2 two identically charged spheres are suspended from a fixed point by threads of equal length .The angle between them is 90^(@) .In another medium of unknown dielectric constant K^(1) and specific gravity 4 the angle between them become 120^(@) if density of material of spheres is 8gm//c c then K^(1) is

Electromagnetic waves travel in a medium which has relative permeability 1.3 and relative permittivity 2.14 . Then the speed of the electromagnetic wave in the medium will be

If relative permittivity and relative permeability of a medium are 3 and 4/3 respectively. the critical angle for this medium is.

The critical angle of a medium for a specific wavelength if the medium has relative permittivity 3 and relative permeability (4)/(3) for this wavelength will be :

JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
  1. Which of the following option have physical quantity of same dimension

    Text Solution

    |

  2. I1 = 9 and I2 = 1 at point p the phase difference is pi/2 and at point...

    Text Solution

    |

  3. Dielectric constant = 4 and relative permeability = 1. Find angle of T...

    Text Solution

    |

  4. vec (a) is non zero vector then

    Text Solution

    |

  5. F = (3,-4,2) & r = (2,2,1) then find torque about the origin.

    Text Solution

    |

  6. A spring is dropped then what will happen with it ?

    Text Solution

    |

  7. Wattless current flows in AC circuit then the circuit is

    Text Solution

    |

  8. If a mass travels 2m in its first second then the distance travelled b...

    Text Solution

    |

  9. A soap bubbles of radius 6cm and 9cm respectively placed in contact wi...

    Text Solution

    |

  10. The terminal velocity (vt) of the spherical raindrop depends on the ra...

    Text Solution

    |

  11. If hat A and hat B are unit vectors and theta is angle between them th...

    Text Solution

    |

  12. In the following figure x length of an uniform chain is hanging from t...

    Text Solution

    |

  13. Find the equivalent capacitance between A and B (C = 8 mu F)

    Text Solution

    |

  14. A particle starts moving under the influence of force vec(F) = 10 hati...

    Text Solution

    |

  15. If on the surface of earth, the gravitational acceleration is g0 then ...

    Text Solution

    |

  16. The ratio of the rms speed to the most probable speed of O2 gas at a c...

    Text Solution

    |

  17. Photodiode is reverse biased for which of the following reason?

    Text Solution

    |

  18. If physical quantities A,B,C and D are related as follows (A^2 B^3)/C^...

    Text Solution

    |

  19. Find the ratio of speed of electron in the third orbit of bohr's model...

    Text Solution

    |

  20. Match the following

    Text Solution

    |