You need to attach the answer choices
Answer:
Explanation:
The case relates to interference in thin films , in which we study interference of light waves reflected by upper and lower surface of a medium or glass.
For constructive interference , the condition is
2μt = ( 2n+1)λ/2
μ is refractive index of glass , t is thickness , λ is wavelength of light.
putting the given values
2 x 1.53 x 350 x 10⁻⁹ = ( 2n+1) λ/2
λ = 2142nm / ( 2n+1)
For n = 2
λ = 428 nm
This wave length will have constructive interference making this light brightest of all .
For n = 1
λ = 714 nm
So second largest brightness will belong to 700 nm wavelength.
The electromagnetic force<span> holds atoms and molecules together.
like a magnet's pull on steel.</span>
The correct answer for this question would be D) Global warming or the fourth option.
If you mean physical state, potassium is a solid at room temp. For a quick and reliable source of physical info about all elements, see ptable.com, "properties" tab.
