Home
Class 11
PHYSICS
In the shown figure answer the following...

In the shown figure answer the following two question.

If `P_(i),P_(r),P_(t)` are powers of incident, reflected and transmitted waves and `I_(i),I_(r),I_(t)` the corresponding intensities , then

A

`P_(i)=P_(r)+P_(t)`

B

`I_(i)=I_(r)+I_(t)`

C

both( a) and (b) are correct

D

both ( a) and (b) are wrong

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WAVE MOTION

    DC PANDEY|Exercise Matrix Matching|16 Videos

  • WAVE MOTION

    DC PANDEY|Exercise Integer Type Question|11 Videos

  • WAVE MOTION

    DC PANDEY|Exercise More Than One Option is Correct|23 Videos

  • VECTORS

    DC PANDEY|Exercise Medical enrances gallery|9 Videos

  • WORK, ENERGY & POWER

    DC PANDEY|Exercise Level 2 Comprehension Based|2 Videos

Similar Questions

Explore conceptually related problems

In the shown figure answer the following two questions If P_i , P_r and P_t are powers of incident, reflected and transmitted waves and I_i, I_t the corresponding intensities, then

A travelling wave is partly reflected and partly transmitted from a rigid boudary. Let a_(i),a_(r)and a_(t) be the amplitude of incident wave, reflected wave and transmitted wave and I_(i),I_(r)and I_(t) be the corresponding intensities. Then choose the correct alternatives

Unpolarized light is intensity I_(0) passes through two polaroids P_(1) and P_(2) such that pass axis of P_(2) makes an angle theta with the pass axis of P_(1) . A third polaroid P_(3) is placed between P_(1) and P_(2) with pass axis of P_(3) making an angle beta with that of P_(1) . If I_(1), I_(2), I_(3) represent intensities of light trnasmitted by P_(1), P_(2), P_(3) , determine the values of angle theta and beta for which I_(1) = I_(2) = I_(3) .

In the following questions, select the missing term. F,I,M,P,T,?

A ray of light intensity I is incident on a parallel glass-slab at a point A as shown in figure. It undergoes partial reflection and refraction. At each reflection 25% of incident energy is reflected. The rays AB and A^(')B^(') undergo interference. The ratio I_(max)//I_(min) is

A mixture of plane polarised and unpolarised light falls normally on a polarising sheet. On rotating the polarising sheet about the direction of the incident beam, the transmitted intensity varies by a factor 4. Find the ratio of the intensities I_(P) and I_(0) respectively of the polarized and unpolarised components in the incident beam. Next the axis of polarising sheet is fixed at an angle of 45^(@) with the direction when the transmitted intensity is maximum. Then obtain the total intensity of the transmitted beam in terms of I_(0) . [(3)/(2),(5I_(0))/(4)]

DC PANDEY-WAVE MOTION-Comprehion Type Questions
  1. [Q.Nos. 1-2] y(x, t) equation of a lingiutudinal wave is given as y ...

    Text Solution

    |

  2. [Q.Nos. 1-2] y(x, t) equation of a lingiutudinal wave is given as y ...

    Text Solution

    |

  3. [Q. Nos. 3-4] Difference in frequencies between 3rd overtone of closed...

    Text Solution

    |

  4. [Q. Nos. 3-4] Difference in frequencies between 3rd overtone of closed...

    Text Solution

    |

  5. In the shown figure answer the following two question. If P(i),P(...

    Text Solution

    |

  6. In the shown figure answer the following question. Under what con...

    Text Solution

    |

  7. [Q. Nos. 7-8] You have three firks A, B, and C Fork B has a frequency ...

    Text Solution

    |

  8. The possible beat frequencies when A and C are sounded together are

    Text Solution

    |

  9. A source is approaching towoed a wall as shown in figure .We have thre...

    Text Solution

    |

  10. Given frequency of source f=100Hz,v(s)=20m//s and v=330 m//s. The beat...

    Text Solution

    |

  11. The position of a transverse wave travelling in medium along positive ...

    Text Solution

    |

  12. A string fastened at both ends has successive resonances with wavelen...

    Text Solution

    |

  13. A string fastened at both ends has successive resonances with wavelen...

    Text Solution

    |

  14. A composite wire is made by joining two uniform wires. If l1 = l2= l a...

    Text Solution

    |

  15. A composite wire is made by joining two uniform wires. If l1 = l2= l a...

    Text Solution

    |

  16. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |

  17. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |

  18. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |

  19. The figure represents the instantaneous picture of a transverse harmon...

    Text Solution

    |