The covalent bond length between two atoms can be experimentally determined by:

Review the verified answer and explanation for this Engineering College Admission Test (ECAT) past-paper question on CampusFin.

The covalent bond length between two atoms can be experimentally determined by: Answer: Electron diffraction

The bond length in covalent molecules is determined using electron diffraction techniques, where high-energy electrons are scattered by molecules to produce patterns that help calculate interatomic distances.