Light takes 8 min 20 sec to reach from sun on the earth. If the whole atmosphere is filled with water, the light will
take the time
Answers
Answer:
Hmmmm your question is intresting
hear is you ans hope it helps you❤️❤️❤️❤️❤️
Explanation:
PHYSICS
avatar
Asked on December 30, 2019 by
Thilakavathy Mishra
Light takes 8 minutes 20 seconds to reach from the sun on the earth. If the whole atmosphere is filled with water, the light will take the time (μ
w
=
3
4
):
Share
Save
ANSWER
The refractive index, n is given as;
n=
v
c
Where:
c= speed of light in vacuum.
v= speed of light in medium.
Therefore,
for water,
3
4
=
v
c
v=
4
3c
With speed c, time taken =8min 20sec=500sec
Therefore, with speed
4
3c
Time taken =666.67 sec=11 min6 sec
Thus, if the atmosphere is filled with water, the sunlight will take 11 min 6 seconds to reach to earth surface........
HELLO FRIEND,
Your answer for this question should be-
14 mins 35 seconds!
REASON: Light's speed in water is approximately 225000 compared to 300000 in air.
So if we take it's speed in air as x then it's speed in water shall be 0.75x!
Calculating from that time taken for light to reach our earth if it was covered with water ought to be 14mins and 35sec!
Hope it helps you!
Mark as BRAINLIEST pls :)