Answer:
The interference of two sound waves of similar amplitude but slightly different frequencies produces a loud-soft-loud oscillation we call <u>beats</u>.
Explanation:
When two objects vibrate at different frequencies, a fluctuating sound is heard, (loud-soft-loud). This phenomenon is known as beating. Loud sound is caused by constructive interference, and soft sound is caused by destructive interference.
Optical fibres, short range communication, electric cookers and infrared cameras/ security systems
Conduct an electrical charge and is measured in ohms
Directly proportional to the product of the two charges and inversely proportional to the square of the distance between them