Question on: SS3 Physics - Introduction to Waves

A wave requires a medium to propagate. Let's analyze the options: * **A. Liquid:** Waves can travel through liquids (e.g., water waves). * **B. Solid:** Waves can travel through solids (e.g., seismic waves). * **C. Air:** Waves can travel through air (e.g., sound waves). * **D. Vacuum:** A vacuum is devoid of matter. Waves, particularly mechanical waves, cannot travel through a vacuum because they require a medium to transfer energy. * **E. None of the Above:** This is incorrect since one of the options is correct. Therefore, the correct answer is that a wave cannot travel through a vacuum.