Home
Class 12
PHYSICS
A radio transmitter operates at a freque...

A radio transmitter operates at a frequency 1000 KHz and a power of 66 kw. Find the number of photons emitted per second

A

`10^27`

B

`10^28`

C

`10^29`

D

`10^30`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    SARAS PUBLICATION|Exercise EXAMPLE|45 Videos

  • MODEL QUESTION PAPER 1

    SARAS PUBLICATION|Exercise EXERCISE|43 Videos

Similar Questions

Explore conceptually related problems

A tightly- wound , long solenoid carries a current of 2.00 A. An electron is found to execute a uniform circular motion inside the solenoid with a frequency of (1.00 xx 10^8 rev s^-1 ). Find the number of turns per metre in the solenoid.

Consider two uniform wires vibrating simultaneously in their fundamental notes. The tension, densities, lengths and diameter of the two wires are in the ratio 8:1, 1:2, x:y and 4:1 respectively. If the note of the higher pitch has a frequency of 360 Hz and the number of beats produced per second is 10, then the value of x:y is

The mean wavelength of light from sun is taken to be 550nm and its mean power is 3.8 xx 10^(26) W. The number of photons received by the human eye per second on the average from sunlight is of the order of

The mean wavelength of light from sun is taken to be 550 nm and its mean power is 3.8 xx 10^(26) W. The number of photons received by the human eye per second on the average from sunlight is of the order of………………

SARAS PUBLICATION-MODEL QUESTION PAPER -3-EXERCISE
  1. Compute the current in the wire if a charge of 120 C is flowing throu...

    Text Solution

    |

  2. A current carrying loop lying in a magnetic field behaves like a ….

    Text Solution

    |

  3. The speed of electromagnetic waves in a vacuum is given by…..

    Text Solution

    |

  4. The amplitude of the magnetic field part of a harmonic electromagnetic...

    Text Solution

    |

  5. Critical angle of light passing from glass to air is minimum for

    Text Solution

    |

  6. The focal length of the lens is ….

    Text Solution

    |

  7. An electron of mass m and charge q is accelerated from rest in a unifo...

    Text Solution

    |

  8. A radio transmitter operates at a frequency 1000 KHz and a power of 66...

    Text Solution

    |

  9. Which of the following atoms has the lowest ionisation potential?

    Text Solution

    |

  10. The ground state energy of hydrogen atom is 13.6 eV. The energy needed...

    Text Solution

    |

  11. The three lattice constants of a crystal are mutually perpendicular to...

    Text Solution

    |

  12. In p-n-p transistor circuit, the collector current is 10 mA. If 90 % o...

    Text Solution

    |

  13. |vecA xx vecB|^2 + |vecA . vecB|^2 is equal to

    Text Solution

    |

  14. The displacement of a particle along the x-axis is given by x = asin^2...

    Text Solution

    |

  15. Between which two points, as indicated in positron-time graph of a par...

    Text Solution

    |

  16. The time period of artificial satellite in a circular orbit of radius ...

    Text Solution

    |

  17. The work function of a metal is 1.5 eV, light of wavelength 6600 overs...

    Text Solution

    |

  18. The viscous force on a small sphere of radius R. moving in a fluid is ...

    Text Solution

    |

  19. In Boolean algebra, which of the following is not equal to zero:

    Text Solution

    |

  20. Focal length of a glass lens in air is 2 cm. Its focal length when imm...

    Text Solution

    |