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NCERT Solutions Class 8 Science Solutions for Exercise in Chapter 16 - Light
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Q2) Differentiate between regular and diffused reflection. Does diffused reflection mean the failure of the laws of reflection?
Answer:
Solution:
Regular reflection
-
In regular reflection, the reflected rays are parallel to each other.
-
Regular reflection occurs from a nicely polished regular reflective surface.
Diffused reflection
-
In diffused reflection, the reflected rays are not parallel to each other.
-
It occurs from a diffused or irregular surface.
In diffused reflection, the surface is rough. Laws of reflection hold true. Due to irregularities on the surface, reflected rays scatter in different directions.
Video transcript
Hello friends, welcome to yet another
lido homework session
in today's class, we are going to be
doing a science problem so let's begin
with the question
the question here is differentiate
between
regular and diffused reflection does
diffuse reflection means that the failure of
the loss of reflection so to this
the question we have is two parts
so let's begin with the first part of
The question, the first part, is to
differentiate
regular and diffused reflection so
I am differentiating regular and
diffused reflection
so this is regular diffusion
this is regular reflection sorry
regular reflection
and this is a diffused
Reflection
so the first one in regular reflection
is that
in regular reflection reflected rays are
parallel to each other
so in regular reflection reflected
ray rays
are parallel
to each other to
each other
[Music]
whereas in diffused reflection
the reflected rays are not parallel to
each other so here
reflected
reflected
rays are not
parallel to each other
to each other
so in regular reflection reflected rays
are parallel
whereas diffused reflection reflected
rays are not
parallel to each other the second
differentiation is that
in regular reflection
this reflection occurs from a polished
Regularly reflected surface
whereas in diffuse reflection the
diffused reflection occurs from a
diffused or
irregular surfaces so let's write our
answer
the second point
the second point
this reflection this reflection
occur from
Nice from a nicely
polished surface
polished surface
so this reflection occurs from a
Nicely polished
I can say nicely polished regular
reflected surface
Nicely polished regular
reflected surface
so regular reflection in regular
reflect that the reflection occurs from a
nicely
polished regular reflected surface
whereas
in diffused reflection
it occurs it occurs
from a diffused from
a diffused
or irregular
from a diffused or
Irregular surface
irregular
a regular
the surface so in diffused reflection
reflection occurs from irregular or
diffused surface
whereas in regular reflection
occurs from
a polished surface so
this is the first part of the question.
I have finished doing the
Differentiation
now let's see what the second part of
the question the second part of the
question says
does diffuse reflection mean failure?
of the law of reflection
so let's see what the answer is that
in diffuse reflection the surface is
rough
so the law of reflection holds true.
so let's write in diffused
Reflection in diffused
Reflection
the surface
the surface is
rough the surface is rough
so the law of so
the law
of reflection law of
low of
Reflection
holds true
and why due to
due to irregularities
due to irregularities
on the surface of the
surface
due to irregularities on the surface
the reflected the reflected
ray scatter
indifferent directions in
different
direction
so in diffuse reflection since the
The surface is rough
the law of reflection is true
and why due to irregularities on
the surface
the reflected ray scatters in different
Directions
and thereby the law of reflection will
become true
for diffused reflection so friends
i hope you have understood the solution
of this question
if you have any doubts or queries, please
comment below and if you like this video
give it a big thumbs up.
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channel till then thank you all
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