Question

Why are we not able to see in a dark room?​

Answer 1

Answer:

it is very necessary for a light ray to be reflected from from a body and then enter our eyes ,so that we can see that object.in a dark room there is no light ray available to get reflected. so no light ray reach our eyes and we are not able to see anything

Explanation:

Answer 2

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In a dark room we are not able to see because of absence of light . Light is a form of energy which is itself invisible but enables us to see other objects .

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• It travels with a speed of 3 × 10⁸ m / s .
• It is a electromagnetic wave .
• It has dual nature i.e. it shows it both wave and particle property.
• It is a non - mechanical wave as it doesn't requires any medium to travel.
• Visible light that enables us to see has a very small wavelength that is it lies in the range of 400nm - 700nm .
• It is a transverse wave .
• Light from sun takes about 8min 16s to reach earth.
• Light can go 7 times earth in one second .