its is turning into electrical energy
Answer:
D. 1.7
Explanation:
Refractive index can be calculated using the formula;
η =real depth/apparent depth
Assume the real depth to be-----x
Apparent depth will be : 40% less than real depth;
60/100 *x =0.6x
η = x/ 0.6 x
η = 1/0.6
η= 10/6
η = 1.66
η = 1.7
Answer:
(D) a brief early period of hyper rapid expansion of space-time.
Explanation:
Cosmic inflation is a theory which states that in an interval of 10⁻³⁶ seconds to around 10⁻³³ seconds after the big bang there was a massive expansion.
According to the big bang theory the universe came to be from a singularity i.e., a point of infinite gravitational field. The universe is expanding this means that according to the conservation of energy the universe was expanding from the beginning.
Answer:
It can be concluded that groombrige 34 b is more luminous than centauri c since they have the same apparent magnitude.
Explanation:
The apparent magnitude is the brightness that a star appears to have as seen from the earth.
This can variate as a consequence of the distance or radius of the star.
for example, if one of two stars has a bigger radius that a second one, the free mean path of the photons will be higher than in the smaller one, so the bigger one will be more luminous.
In the case of the distance, if for example, two motorbikes with its lights on are approaching an observer, but one of the motorbikes is at a greater distance, it will appear that is light is dimmer compared to the one that is closer. Even if both emit the same amount of light per unit of time.
Therefore, it can be concluded that groombrige 34 b is more luminous than centauri c since they have the same apparent magnitude.