Answer:
Explanation:
Energy, E = 4.75 x 10^-19 J
Energy, E = hc/λ
where, λ is the wavelength, h be the Plank's constant and c be the velocity of light.
h = 6.63 x 10^-34 Js
c = 3 x 10^8 m/s
λ = (6.63 x 10^-34 x 3 x 10^8) / (4.75 x 10^-19)
λ = 418.73 nm
So, the colour of light should be violet.
The collision of the two waves would bring force and that would make the new wave smaller
Answer:
Not between significant digits.
Explanation:
A zero not significant when it's not between significant digits.
Answer:
stars will emit more light due to their Luminosity, so they look very bright.
Explanation:
Luminous refers to..,
- The total amount of energy radiated by a star or other celestial object per second.
- Therefore it is the power output of a star.
Most of the really bright stars in our sky are not that very close to us yet they look bright because of the Luminosity of the star.
These stars are intrinsically so luminous.
A star's power output across all wavelengths is called its bolometric luminosity.
A star with large luminosity will have more measure of radiated electromagnetic power meaning.
so it will emit more light than a low luminosity star.
Hence,
those stars can easily be seen even across great distance.
learn more about Luminosity of the star here:
<u>brainly.com/question/13912549</u>
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