Which of the following phenomenon proves that light waves are transverse waves?
Correct answer: A. Polarization
- A. Polarization
- B. Refraction
- C. Interference
- D. Diffraction
Explanation
Only transverse waves can undergo polarisation. Longitudinal waves cannot undergo polarization. Since light can undergo polarisation, it is a transverse wave.In summary, while refraction, interference, and diffraction are all phenomena that demonstrate the wave nature of light, they do not specifically prove that light waves are transverse waves. Each of these phenomena can be understood within the broader framework of wave optics, which encompasses both transverse and longitudinal waves.
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Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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