When light travels from a medium with higher refractive index to a medium with lower refractive index, the critical angle is the angle of incidence above which light is reflected only (no refraction occurs), and the value of this critical angle is given by

where n2 is the refractive index of the second medium and n1 is the refractive index of the first medium.
In this problem, the first medium is the glass (

), while the second medium is oil (

), therefore the critical angle is given by
Answer:
2500/240 will give the resistance to be 10.42
Particle arrangement and movement
⇒ In terms of relative energy, gas particles have the most energy, solid particles have the least energy and liquid particles are somewhere in between. (All compared at the same temperature.)
<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>
Answer:
0.016 s
Explanation:
Initial velocity, u = 0
use the third equation of motion to find the acceleration of the rock.

Net displacement in the vertical direction would be zero. y = 0
Use second equation:

Thus, the rock will return to its initial release point in 0.016 s.
There is 1 Mg and 2 Cl i think