AP EAMCET201823 Apr 2018Evening ShiftPhysicsElectromagnetic WavesActual
The oscillating electric field of an electromagnetic wave is given by E_y=30 (2 10¹¹ t+300 x ) Vm ⁻¹ . Then, the value of wavelength of the electromagnetic wave is
Options
- A5.67 10⁻³ ~m
- B6.67 10⁻³ ~m
- C66.7 10⁻³ ~m
- D7.66 10⁻³ ~m
Correct answer
B. 6.67 10⁻³ ~m
Step-by-step solution
From equation of wave, k= wave number =300 Also, aligned & k= 2 & = 2 k = 2 300 =6.67 10⁻³ ~m aligned