Answer:
option A
Explanation:
given,
lamp position from pool wall = 2.5 m
height of the pool = 2.5 m
now,
from the triangle
θ = i = 45°
using Snell's law
n₁ sin i = n₂ sin r
n₁ =4/3 n₂ = 1
now,
r = sin⁻¹(0.9428)
r = 70.5°
hence, the correct answer is option A
Answer:
Explanation:
check attachment below for explicit explanation and answer.
Answer:
<h2>
<u>3. The Sputnik orbitted at approximately 577.1 km above the surface of the Earth. </u></h2><h2>
<u>4.First Successful U.S. Rocket Launch into Space was The Jupiter C</u></h2>
Explanation:
The first two are already answered 5-9 I cannot answer because I have not watched "October sky video" and I don't know who homer and the boys are<em>.</em>
I Hope This helps
