How sunlight reaches the earth?

Hi Prakash,

Appreciating your good interest to know more about the
sunlight and the property. As you have knew that large amount of
energy would emitted from the Sun by the nuclear fusion and the emitted
energy has high power and can reach to the earth through the space,
because space contains lots of air and the air act as a medium of transfer
from the sun to the earth. From this energy so many organisms including
the living animals and living plants would gets the energy in order to
survive and have the life in this earth.

Have a nice day.

Particle-wave dualism is one of the popular antinomies of science. Antinomies are seeming contradictions between two equally valid principles or from inferences derived from these principles. That light is a particle can be proven scientifically the same way with light being wave but waves are not particles but forms of energy. Yes, light travels in space and there is a precise formula, discussion of which is outside the scope of this limited space.

Interesting topic.

Hi Prakash,
light is a electromagnetic wave which does not require a medium to travel. thus, its travels in the space and reaches our good old planet earth...

light is a emission of energy
and if we can see it we termed it as visible light but light has ultraviolet as well as infrared region
so these region of light are not visible to us
light is not medium specific
it even travels through air water as well as vaccum
it has wave as well as particle nature
it has electric field and magnetic field perpendicular to each other
it can be transformed into electrical energy using solar cell