According to the big bang theory, the universe was once a very C. hot and hostile place, and it expanded rapidly. This rapid expansion was the very reason it eventually cooled down and eventually got to its present state where all the planets and galaxies and what not were created.
Answer:
Refraction is the slowing down of light waves as they pass into a different medium and speeding as they pass out.
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<span>The total amount of kinetic energy and potential energy within a system is called "Mechanical Energy"
In short, Your Answer would be Option C
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Answer:
The spacing between the slits is
Explanation:
From the question we are told that
The wavelength of the light is 
The distance of the slit from the screen is 
The number of bright fringe is 
The length the fringes span is 
The fringe width (i.e the distance of between two successive bright or dark fringe) is mathematically represented as

Where d is the distance between the slits
is the fringe width which can also be evaluated as

Substituting values


Making d the subject of formula in the above equation

Substituting values

Answer:
D
Explanation:
on the left u see it says velocity