The correct choice is
B) false
as the wave moves from a less dense medium to a denser one, the frequency of the wave does not change. we know that the energy of the wave directly depends on the frequency. Since the frequency of wave does not change while moving from less dense medium to more dense medium, the energy of the wave does not change.
Answer:
Blue
Explanation
The Sunlight that enters the atomosphere is blue.
"Thus, as sunlight of all colors passes through air, the blue part causes charged particles to oscillate faster than does the red part. ... More of the sunlight entering the atmosphere is blue than violet, however, and our eyes are somewhat more sensitive to blue light than to violet light, so the sky appears blue".
creo que soy yo pero lo veo en ingles
Answer:
(a) ![E=2.42eV](https://tex.z-dn.net/?f=E%3D2.42eV)
(b) ![E=1.45*10^{-5}eV](https://tex.z-dn.net/?f=E%3D1.45%2A10%5E%7B-5%7DeV)
(c) ![E=1.66*10^{-7}eV](https://tex.z-dn.net/?f=E%3D1.66%2A10%5E%7B-7%7DeV)
Explanation:
The Planck-Einstein relation allows us to know the energy (E) of a photon, knowing its frequency (f). According to this relation, the energy of the photon is defined as:
![E=hf](https://tex.z-dn.net/?f=E%3Dhf)
Here h is the Planck constant.
(a)
![E=(4.14*10^{-15}eV\cdot s)(585*10^{12}Hz)\\E=2.42eV](https://tex.z-dn.net/?f=E%3D%284.14%2A10%5E%7B-15%7DeV%5Ccdot%20s%29%28585%2A10%5E%7B12%7DHz%29%5C%5CE%3D2.42eV)
(b)
![E=(4.14*10^{-15}eV\cdot s)(3.50*10^{9}Hz)\\E=1.45*10^{-5}eV](https://tex.z-dn.net/?f=E%3D%284.14%2A10%5E%7B-15%7DeV%5Ccdot%20s%29%283.50%2A10%5E%7B9%7DHz%29%5C%5CE%3D1.45%2A10%5E%7B-5%7DeV)
(c)
![E=(4.14*10^{-15}eV\cdot s)(40.0*10^{6}Hz)\\E=1.66*10^{-7}eV](https://tex.z-dn.net/?f=E%3D%284.14%2A10%5E%7B-15%7DeV%5Ccdot%20s%29%2840.0%2A10%5E%7B6%7DHz%29%5C%5CE%3D1.66%2A10%5E%7B-7%7DeV)
B. It reflects light rays outward.
A convex mirror looks like this ⊂. So when light rays hit the outward curves, it bends the light rays outwards, and backwards, and it would appear to be coming from its center called the focus.