A violinist hears beats per second when bowing her string along with a electronic tone

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

A violinist hears

5

beats per second when bowing her

A

string along with a

440\,\text{Hz}

electronic tone. After she loosens the string slightly, the beats disappear. What was the original frequency of her string before the adjustment? (a)

450\,\text{Hz}

(b)

445\,\text{Hz}

(c)

435\,\text{Hz}

(d)

438\,\text{Hz}