When the bottom tip of a vibrating tuning fork is held in contact with a wooden box, a louder sound is heard. This phenomenon is known as
Answer Details
The phenomenon you're describing is called resonance. When the tuning fork is brought in contact with the wooden box, the box starts vibrating at the same frequency as the tuning fork, which amplifies the sound waves produced by the tuning fork. This happens because the wooden box is able to resonate, or vibrate, at the same frequency as the tuning fork.
Resonance occurs when an object is able to vibrate at its natural frequency in response to another object vibrating at the same frequency. This causes the amplitude (or loudness) of the vibration to increase.
In this case, the wooden box is able to resonate at the same frequency as the tuning fork, so the sound produced by the tuning fork is amplified, resulting in a louder sound.