JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
In free space, an electromagnetic wave of \(3 \; GHz\) of \(3 \; GHz\) frequency strikes over the edge of an object of size \(\frac{\lambda}{100}\), where \(\lambda\) is the wavelength of the wave in free space. The phenomenon, which happens there will be .....
- A Reflection
- B Refraction
- C Diffraction
- D Scattering
Answer & Solution
Correct Answer
(D) Scattering
Step-by-step Solution
Detailed explanation
\(\frac{ a }{\lambda}=\frac{1}{100}\) For reflection size of obstacle must be much larger than wavelength, for diffraction size should be order of wavelength. Since the object is of size \(\frac{\lambda}{100}\), much smaller than wavelength, so scattering will occur.
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