मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान इयत्ता १२

Let E = E0 sin[106 x -ωt] be the electric field of plane electromagnetic wave, the value of ω is ______. - Physics

Advertisements
Advertisements

प्रश्न

Let E = E0 sin[106 x -ωt] be the electric field of plane electromagnetic wave, the value of ω is ______.

पर्याय

  • 0.3 x 10-14 rad s-1

  • 3 x 10-14 rad s-1

  • 0.3 x 1014 rad s-1

  • 3 x 1014 rad s-1

MCQ
रिकाम्या जागा भरा

उत्तर

Let E = E0 sin[106 x -ωt] be the electric field of plane electromagnetic wave, the value of ω is 3 x 1014 rad s-1.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Electromagnetic waves - Evaluation [पृष्ठ २८३]

APPEARS IN

सामाचीर कलवी Physics - Volume 1 and 2 [English] Class 12 TN Board
पाठ 5 Electromagnetic waves
Evaluation | Q I. 13. | पृष्ठ २८३

संबंधित प्रश्‍न

Write mathematical expressions for electric and magnetic fields of an electromagnetic wave propagating along the z-axis.


Suppose that the electric field amplitude of an electromagnetic wave is E0 = 120 N/C and that its frequency is v = 50.0 MHz.

  1. Determine B0, ω, k, and λ.
  2. Find expressions for E and B.

How is the speed of em-waves in vacuum determined by the electric and magnetic field?


In the study of a photoelectric effect the graph between the stopping potential V and frequency v of the incident radiation on two different metals P and Q is shown below:

(i) Which one of the two metals has higher threshold frequency?

(ii) Determine the work function of the metal which has greater value.

(iii) Find the maximum kinetic energy of electron emitted by light of frequency 8 × 1014 Hz for this metal.


Write a short note on the microwave.


Consider a parallel plate capacitor whose plates are closely spaced. Let R be the radius of the plates and the current in the wire connected to the plates is 5 A, calculate the displacement current through the surface passing between the plates by directly calculating the rate of change of flux of electric field through the surface.


Velocity of plane electromagnetic waves in vacuum equals ______.


The velocity of electromagnetic wave is parallel to


A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by:

[Given permittivity of space ∈0 = 9 × 10-12 SI units, Speed of light c = 3  108 m/s] 


The ratio of the magnitudes of the electric field and magnetic field of a plane electromagnetic wave is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×