Why light waves cannot show diffracton around hills and tall buildings whereas sound waves can ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Diffraction**:
- Diffraction is the bending of waves around obstacles or through openings. It occurs when the size of the obstacle or opening is comparable to the wavelength of the wave.

2. **Wavelength Comparison**:
- The wavelength of light is in the range of 3800 to 7800 angstroms (or 0.00038 to 0.00078 mm).
- The wavelength of sound, on the other hand, ranges from 17 mm to 17 meters, depending on the frequency of the sound.
...