When two tuning forks (fork … and fork …) are sounded simultaneously, … beats per second are heated. Now, some tape is attached on the prong of the fork … When the tuning forks are sounded again, … beats per second are heard. If the frequency of fork … is … …, then what was the original frequency of fork … ?

Option D. No. of beats heard when fork … is sounded with fork … …

Waves

JEE Main 2005 · Annual, Paper 1 · Q8540

PhysicsMedium85×since 2002Q8540

When two tuning forks (fork

1

and fork

2

) are sounded simultaneously,

4

beats per second are heated. Now, some tape is attached on the prong of the fork

2.

When the tuning forks are sounded again,

6

beats per second are heard. If the frequency of fork

1

200

Hz

, then what was the original frequency of fork

2