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 ENGLISH|Exercise Matrix Matching|16 Videos

  • WAVE MOTION

    DC PANDEY ENGLISH|Exercise Integer Type Question|11 Videos

  • WAVE MOTION

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

  • VECTORS

    DC PANDEY ENGLISH|Exercise Medical enrances gallery|9 Videos

  • WORK, ENERGY & POWER

    DC PANDEY ENGLISH|Exercise Level 2 Comprehension Based|2 Videos

Similar Questions

Explore conceptually related problems

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

In the figure shown sin i/sin r is equal to

Observe the figure given below, and answer the question. How are i and r related?

In C - R circuit, answer the following two questions During charging of C - R circuit let t_(1) and i_(1) be the time constant and initial charging current when capacitor is assumed to be filled by a perfect insulator and t_(2) and i_(2) be the corresponding values when it is assumed imperfect. Then

In the figure shown a sinusoidal wave is generated at the end A the wave travels along positive x-axis and during its motion it encounter another string BD at the junction 'B' at x=0. The density of string AB and BC are rho "and" 9rho respectively and their radii of cross sections are 2r"and"r. The wave function amplitude and wavelength of incident wave are respectively "y"_(i) A_(i)"and"lambda_(i) Similarly for reflected and transmitted wave these peremeters are "y"_(r),A_(r),lambda_(r)"and"y_(t),A_(t),lambda_(t) The ratio of wavelengths lambda_(r) "to" lambda_(i) (i.e.lambda_(r):lambda_(t)) will be

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 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 harmonic wave is travelling on string 1. At a junction with string 2 it is partly reflected and partly transmitted. The linear mass density of the second string is four times that of the first string, and that the boundary between the two strings is at x=0. If the expression for the incident wave is y_i = A_i cos (k_1 x-omega_1t) (a) What are the expressions for the transmitted and the reflected waves in terms of A_i, k_1 and omega_1 ? (b) Show that the average power carried by the incident wave is equal to the sum of the average power carried by the transmitted and reflected waves.

In the figure shown a sinusoidal wave is generated at the end A the wave travels along positive x-axis and during its motion it encounter another string BD at the junction 'B' at x=0. The density of string AB and BC are rho "and" 9rho respectively and their radii of cross sections are 2r"and"r. The wave function amplitude and wavelength of incident wave are respectively "y"_(p) A_(i)"and"lambda_(r) Similarly for reflected and transmitted wave these peremeters are "y"_(r),A_(r),lambda_(r)"and"y_(i),A_(i),lambda_(i) The ratio of amplitudes A_(r) "to" A_(r) "is"(i.e.A_(r):A_(t)) will be

Two wires having different densities are joined at x = 0. An incident wave y_(i) = A_(i) sin(omegat - k_(1)x) , travelling to the right in the wire is partly reflected and partly transmitted at x=0. If A_(i) and A_t be the amplitudes of incident and transmitted waves respectively,

DC PANDEY ENGLISH-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. y(x, t) equation of a lingitudinal wave is given as y = 10^(-2)2(pi)...

    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. [Q.Nos.5-6] In the shown figure answer the following two question. ...

    Text Solution

    |

  7. [Q. Nos. 7-8] You have three forks 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 bea...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    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

    |

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

    Text Solution

    |