Answer:
To add technology and advancements to society and make out community more advanced.
Explanation:
Answer:
Frequency = 
Wavenumber = 
Energy = 
Energy = 1.4579 eV
Energy = 
Explanation:
As we are given the wavelength = 850 nm
conversion used : 
So, wavelength is 
The relation between frequency and wavelength is shown below as:

Where, c is the speed of light having value = 
So, Frequency is:


Wavenumber is the reciprocal of wavelength.
So,


Also,

where, h is Plank's constant having value as 
So,


Also,

So,


Also,

So,


Answer:
Check the explanation
Explanation:
Kindly check the attached images below to see the step by step explanation to the question above.
I think option c 12 is currect
Answer:
extrusive,
Explanation:
lava exlodes outwards, making it extrusive and not intrusive.