Black holes affect the causal structure of spacetime in such a manner that all future light cones within a black hole lie within the event horizon of it.
Although photons are massless they have energy and have to obey the geometry of a curved spacetime. Since all future lies within the event horizon, photons are trapped inside the black hole.
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Answer:
we don't care what ure saying thats absurd
Answer: box one is chemical energy and box 2 is absorbed energy
Explanation:
Answer:
1.11
Explanation:
The index of the medium can be calculated using below formula
V= c/ n ............eqn(1)
Where V= velocity of the light is reduced to while traveling through the second medium= 2.7 x 10^8 m/s
n= index of the medium
c= speed of light= 3 x 10^8 m/s
Substitute for the values in eqn(1)
2.7 x 10^8 = (3 x 10^8 m/s)/ n
Making " n" subject of the formula, we have
n= (3 x 10^8 )/(2.7 x 10^8)
n= 1.11
Hence, the index of the medium is 1.11
Answer:
Air resistance
Explanation:
Restiance of the air against the parachute slows