here since string is attached with a mass of 2 kg
so here tension force in the rope is given as
![T = mg](https://tex.z-dn.net/?f=T%20%3D%20mg)
here we will have
![T = 2(9.8) = 19.6 N](https://tex.z-dn.net/?f=T%20%3D%202%289.8%29%20%3D%2019.6%20N)
now we will have speed of wave given as
![v = \sqrt{\frac{T}{\mu}}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cfrac%7BT%7D%7B%5Cmu%7D%7D)
here we will have
![v = \sqrt{\frac{19.6}{0.75\times 10^{-2}}}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cfrac%7B19.6%7D%7B0.75%5Ctimes%2010%5E%7B-2%7D%7D%7D)
![v = 16.33 m/s](https://tex.z-dn.net/?f=v%20%3D%2016.33%20m%2Fs)
now we know that frequency is given as
F = 100 Hz
now wavelength is given as
![\lambda = \frac{v}{F}](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%5Cfrac%7Bv%7D%7BF%7D)
![\lambda = \frac{16.33}{100} = 0.16 m](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%5Cfrac%7B16.33%7D%7B100%7D%20%3D%200.16%20m)
so wavelength will be 0.16 m
Answer:
C
Explanation:
it transforms electrical energy into mechanical energy.
Answer:
A & B
Explanation:
A & B Would be the right answer since Morse code cannot be represented through the height of the fire.