Given
The refractive index of water is
To find
The speed of light in water
Explanation
Speed of light in a medium is:
Putting the values,
Conclusion
The speed of light in water is
Answer:
8 meter telescope 16 times more gather light than 2 meter telescope.
Explanation:
The amount of light gather by the telescope is known as Light Gathering Power (LGP).
Light Gathering Power is determine by the relation:
In this problem, let l₁ and l₂ be the length of two telescopes and (LGP)₁ and (LGP)₂ be the light gathering power of two telescopes respectively. Then the ratio of their LGP is :
Substitute 8 m for l₁ and 2 m for l₂ in the above equation.
Answer:
Light can pass through Object B faster than it can pass through Object A.
Explanation:
When light enters in the medium denser than air it bends towards the normal. Thus, if light enters in the medium with higher refracting index it slows down.
So, when light can pass through object B faster than that of object A as object A has higher refracting index than object B.
Speed of light is inversely proportional to the optical density. Optical density is directly proportional to refracting index. So, for higher optical density refracting index is higher and the speed of light is less.
Hence, optical density of object A is higher than that of object B.
The Beams And Joints That Hold It .
Answer:
write something like after the spacecraft launched all of the potential energy transformed into kinetic energy causing the spacecraft to go at an abnormal spped.
Explanation: