Two tuning forks of frequencies and are sounded together

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

Two tuning forks of frequencies

256\,\text{Hz}

and

260\,\text{Hz}

are sounded together. The beat frequency heard is (a)

6\,\text{Hz}

(b)

4\,\text{Hz}

(c)

8\,\text{Hz}

(d)

2\,\text{Hz}