Physics, asked by sabreensiddiqa, 2 months ago

. A light is fixing outside your house. Your father wants the light to reach maximum area. Do

you have any suggestion to spread the light over a large area?class 7 physics NCERT solution​

Answers

Answered by madeducators6
1

EXPLANATION:

a) We can spread the light over a large area by the use of an instrument named as Reflector. It is a combination of concave and cylindrical reflecting surfaces in the form of a deep bowl of wide dispersive powder.

b) With most light sources, it is more desirable to use some additional output to direct the whole light to the surface to be illuminated.

c) For this reason, reflectors are being used and are the easiest way of softening, diffusing or redirecting light. We can use white sheets as a reflector by placing the subject close to the window sheet  and hanging it  on the opposite direction so that we can have soft light with less contrast.

d) Mirrors could be used as a reflector to reflect light or redirect sun rays.

e) A wall mirror is a great instrument to reflect light and doubling the image of the object for some interesting compositions.

f) Reflectors are easy to use as we point light to them and they bounce back at the same angle in the opposite direction.

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