plzzz tell me all the formulas of class 10 science chapter Light reflection and refraction??
Answers
Answer:
Formulas on Reflection of Light
Laws of Reflection
Laws of Reflection
Incident ray, reflected ray, and normal at the point of incidence lie in the same plane.
The angle of incidence is equal to the angle of reflection i.e.,
∠
i
=
∠
r
.
Reflection from a Plane Mirror
Reflection from a Plane Mirror
The image is virtual. The image and the object are equidistant from the mirror.
The object size is equal to the image size i.e., magnification is 1.
Reflection from a Spherical Mirror
Reflection from a Spherical Mirror
New cartesian sign convention (i) the distances are measured from the pole P (ii) the distances in the direction of incident ray are positive.
Focal length is equal to half of radius of curvature i.e.,
f
=
R
/
2
.
The object distance
u
, image distance
v
and focal length
f
are related by the mirror formula:
1
v
+
1
u
=
1
f
The magnification is the ratio of image height to the object height and it is given by
m
=
−
v
u
Formulas on Refraction of Light
Refractive Index
μ
=
speed of light in vacuum
speed of light in medium
=
c
v
Laws of Refraction
Explanation:
see the attachment
