Answer:
It is showing the wavelength.
Explanation: Hope it helps you:)))
have a good day
We can find the volume of a small
pebble with the help of measuring cylinder by using the water displacement
method. <span>The </span>water displacement method<span> <span>is the
process of measuring the volume of an irregularly shaped object by immersing it
in water. </span></span>I am
hoping that this answer has satisfied your query and it will be able to help
you in your endeavor, and if you would like, feel free to ask another question.
Answer:
The speed of this light and wavelength in a liquid are
and 442 nm.
Explanation:
Given that,
Wavelength = 650 nm
Index refraction = 1.47
(a). We need to calculate the speed
Using formula of speed
![n = \dfrac{c}{v}](https://tex.z-dn.net/?f=n%20%3D%20%5Cdfrac%7Bc%7D%7Bv%7D)
Where, n = refraction index
c = speed of light in vacuum
v = speed of light in medium
Put the value into the formula
![1.47=\dfrac{3\times10^{8}}{v}](https://tex.z-dn.net/?f=1.47%3D%5Cdfrac%7B3%5Ctimes10%5E%7B8%7D%7D%7Bv%7D)
![v=\dfrac{3\times10^{8}}{1.47}](https://tex.z-dn.net/?f=v%3D%5Cdfrac%7B3%5Ctimes10%5E%7B8%7D%7D%7B1.47%7D)
![v= 2.04\times10^{8}\ m/s](https://tex.z-dn.net/?f=v%3D%202.04%5Ctimes10%5E%7B8%7D%5C%20m%2Fs)
(b). We need to calculate the wavelength
Using formula of wavelength
![n=\dfrac{\lambda_{0}}{\lambda}](https://tex.z-dn.net/?f=n%3D%5Cdfrac%7B%5Clambda_%7B0%7D%7D%7B%5Clambda%7D)
![\lambda=\dfrac{\lambda_{0}}{n}](https://tex.z-dn.net/?f=%5Clambda%3D%5Cdfrac%7B%5Clambda_%7B0%7D%7D%7Bn%7D)
Where,
= wavelength in vacuum
= wavelength in medium
Put the value into the formula
![\lambda=\dfrac{650\times10^{-9}}{1.47}](https://tex.z-dn.net/?f=%5Clambda%3D%5Cdfrac%7B650%5Ctimes10%5E%7B-9%7D%7D%7B1.47%7D)
![\lambda=442\times10^{-9}\ m](https://tex.z-dn.net/?f=%5Clambda%3D442%5Ctimes10%5E%7B-9%7D%5C%20m)
Hence, The speed of this light and wavelength in a liquid are
and 442 nm.