Choose all that are correct about the wave nature of light from the following: A

Question

Choose all that are correct about the wave nature of light from the following: A. When an electromagnetic wave is reflected by a metal surface, the ratio of the angle of reflection to the incident angle can be different for different polarization direction of the incident wave B. For diffraction to occur the size of an "obstacle" (slit, disk etc.) should be smaller than the wavelength of incident light C. The phenomenon of superposition of coherent waves of different phase is called interference D. For electromagnetic waves, interference can only occur for waves with wavelength shorter than 1 mm E. According to "ray model" for light, diffraction should not occur F. The phenomenon of superposition of coherent but phase shifted waves from infinite number of sources is called diffraction G. All electromagnetic waves are transverse waves

Explanation / Answer

A. When an electromagnetic wave is reflected by a metal surface, the ratio of the angle of reflection to the incident angle can be different for different polarization direction of the incident wave FALSE

B. For diffraction to occur the size of an "obstacle" (slit, disk etc.) should be smaller than the wavelength of incident light FALSE

C. The phenomenon of superposition of coherent waves of different phase is called interference TRUE

D. For electromagnetic waves, interference can only occur for waves with wavelength shorter than 1 mm FALSE

E. According to "ray model" for light, diffraction should not occur TRUE

F. The phenomenon of superposition of coherent but phase shifted waves from infinite number of sources is called diffraction TRUE

G. All electromagnetic waves are transverse waves TRUE

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