1
Q:
| A) copper wire placed in air | B) silver slab placed in air |
| C) glass prism placed in water | D) wooden hollow pipe placed in vacuum |
Answer: D) wooden hollow pipe placed in vacuum
Explanation:
Explanation:
Sound is a kind of energy created when something vibrates. When this vibration reaches an ear, it is translated into what we recognize as a sound. Sound vibration must travel through matter. Therefore, it can travel through air and water but not through vacuum.
Aptitude and Reasoning
General Knowledge
Puzzles
Interviews
Technical
Certifications
Exams
Job
Roles
True or False
Exams