Question

A standing wave form is 10 m long between the first and sixth nodes. The wavelength is:

0.4 m
0.6 m
1.4 m
4.0 m

Answer 1

6nodes= 2.5wavelenghts
10cm/2.5= 4cm
1wavelenght= 4cm

Answer 2

Answer:

Wavelength = 4.0 m

Explanation:

As we know that the distance between first and sixth nodes is given as 10 m

so here between first and sixth node the total number of loops are

N = 5

length of one loop is given by

$\frac{\lambda}{2} = \frac{10}{5}$

so here we have

$\lambda = 2 \times \frac{10}{5}$

$\lambda = 4.0 m$

so the wavelength of the standing wave here is of length 4.0 m