(D) The ratio of the size of the obstacle $a$ to the wavelength $\lambda$ is given by $\frac{a}{\lambda} = \frac{1}{100}$.For reflection to occur,the

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(D) The ratio of the size of the obstacle $a$ to the wavelength $\lambda$ is given by $\frac{a}{\lambda} = \frac{1}{100}$.For reflection to occur,the size of the obstacle must be much larger than the wavelength $(a \gg \lambda)$.For diffraction to occur,the size of the obstacle should be of the order of the wavelength $(a \approx \lambda)$.Since the object size is $\frac{\lambda}{100}$,which is much smaller than the wavelength $(a \ll \lambda)$,the electromagnetic wave will undergo scattering.

Class 12 Physics Electromagnetic waves Properties of Electromagnetic Waves

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In free space,an electromagnetic wave of $3 \; GHz$ frequency strikes an object of size $\frac{\lambda}{100}$,where $\lambda$ is the wavelength of the wave in free space. The phenomenon that occurs is .....

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Reflection
B
Refraction
C
Diffraction
D
Scattering

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Electromagnetic waves

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Properties of Electromagnetic Waves

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In free space,an electromagnetic wave of $3 \; GHz$ frequency strikes an object of size $\frac{\lambda}{100}$,where $\lambda$ is the wavelength of the wave in free space. The phenomenon that occurs is .....

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