Question

Students create a standing wave with three loops on a slinky 3.75 m longThey time 20 oscillations in 6.73 . What frequency would create a standing wave with 5 loops?

Answer 1

Answer:

$f = 4.95\ hz$

Explanation:

Given,

Student create wave of three loop on a slinky 3.75 m.

number of oscillations= 20

Time, t = 6.73 s

Frequency = $\dfrac{20}{6.73}$

                  = 2.97 Hz

We need to find frequency when 5 loops is created.

$f = \dfrac{5}{3} \times 2.97$

$f = 4.95\ hz$