Answer:
The three types of thermal expansions are Linear expansion , Superficial expansion and Cubical expansion
Answer:187500m
Explanation:
frequency=1600kHz
Velocity=3x10^8 m/s
Wavelength=velocity ➗ frequency
Wavelength=(3x10^8) ➗ 1600
Wavelength=187500m
<h2>
Answer:</h2>
<h3>Interconversion of matter refers to change of one State to another. it is a process by which matter changes from one State to another and back to original state, without any change in it's chemical composition. Solid can be converted into liquids by heating</h3>
<h2>
Explanation:</h2>
<h2>HOPE IT HELPS!!</h2>
<h2>PLZ I NEED BRAINLIEST!!!</h2>
Answer:
Refraction
Explanation:
A pencil bends when it enters the water media due to the phenomenon of refraction.
- Refraction is one of the properties of waves.
- Refraction of light occurs which it crosses from a region having different density values.
- Water is denser than air.
- As light moves from air to wave it becomes refracted
Answer:a
Explanation:
Given
![[H^+]=5.3\times 10^{-4}\ M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D5.3%5Ctimes%2010%5E%7B-4%7D%5C%20M)
and 
Also ![pH=-\log [H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH%5E%2B%5D)
therefore 
Thus 
and ![pOH=-\log [OH^{-}]](https://tex.z-dn.net/?f=pOH%3D-%5Clog%20%5BOH%5E%7B-%7D%5D)
![[OH]^{-1}=10^{-10.25}](https://tex.z-dn.net/?f=%5BOH%5D%5E%7B-1%7D%3D10%5E%7B-10.25%7D)
![[OH]^{-1}=1.88\times 10^{-11}\ M](https://tex.z-dn.net/?f=%5BOH%5D%5E%7B-1%7D%3D1.88%5Ctimes%2010%5E%7B-11%7D%5C%20M)
As the pH is less than 7 therefore solution is acidic
