physics art integrated activity_20240704_143949_0000.pdf

Grade 7 physics

1. REFLECTION
physics art integrated activity
Topic by _________________
in spherical mirrors

2. table of
Understanding
Reflection
01
02
Some Important Terms
03
Formulae
04
CONTENTS
Convex and Concave Mirrors

3. Understanding
Spherical mirrors are precisely shaped reflective surfaces that have a
curvature similar to that of a sphere. They are often categorized into two
primary types: concave and convex mirrors. Concave mirrors are inwardly
curved, causing light rays to converge towards a focal point, while convex
mirrors are outwardly curved, diverging light rays and creating virtual
images. Understanding the behavior of light rays as they interact with
these mirrors unlocks a world of optical possibilities.
REFLECTION

4. Concave Mirrors
Concave mirrors possess unique characteristics that make them invaluable in various applications. They can produce real or
virtual images, depending on the position of the object in relation to the mirror's focal point. Real images are formed when the
object is located beyond the focal point, while virtual images are created when the object is positioned between the mirror and
the focal point. The size, orientation, and location of the image can be precisely determined using the principles of geometric
optics.

5. Convex Mirrors
Convex mirrors, on the other hand, exhibit distinct properties that make them widely utilized in different
scenarios. They always produce virtual, diminished, and upright images, regardless of the object's
position. Due to their diverging nature, convex mirrors provide a wider field of view, making them ideal
for applications such as security mirrors and side-view mirrors in vehicles.

6. Some Important Terms
Center of Curvature
(C): The center of the
sphere from which the
mirror is formed. It is
located at a distance
equal to the radius of
curvature (R) from the
mirror's vertex.
Principal Axis: An
imaginary straight
line passing through
the center of
curvature, vertex,
and the midpoint of
the mirror.
Focal Point (F): The point
on the principal axis
where light rays parallel
to the axis converge or
appear to diverge after
reflection. It is located at
a distance of half the
radius of curvature (R/2)
from the vertex.
Focal Length (f):
The distance
between the focal
point (F) and the
vertex (V) of the
mirror. It is equal
to half the radius of
curvature (f = R/2).
Magnification (m): A
measure of the size and
orientation of the image
formed by a spherical
mirror. It is calculated as
the ratio of the height of
the image (hi) to the height
of the object (ho), or m =
hi/ho. It can be positive
(inverted image) or
negative (erect image).
Virtual Image: An image
formed by a spherical
mirror that cannot be
projected onto a screen. It
is formed when the object
is positioned between the
mirror and the focal point,
and the light rays diverge.
Real Image: An image
formed by a concave mirror
that can be projected onto
a screen. It is formed when
the object is positioned
beyond the focal point, and
the light rays converge.

7. mirror formula:
1 1 1
f v u_ _ _
=
magnification
m h -v
h
u
_ _
=
R = 2f
power:
p=-1/f
formulae

8. Medicine and Dentistry
Applications of spherical mirrors
Concave mirrors are crucial in medical imaging techniques like endoscopies and
dental examinations. They help visualize internal organs, cavities, and teeth by
reflecting light and creating magnified or real images.
Solar Power Generation
Spherical mirrors are used in solar power systems to concentrate sunlight onto a
small receiver, converting solar energy into usable heat or electricity.
Optics and Telescopes
Spherical mirrors are integral components of telescopes, allowing astronomers to gather and
focus light from distant celestial objects, enabling detailed observations and advancing our
understanding of the universe.

9. conclusion
Spherical mirrors are fascinating optical devices that
have shaped our understanding of light and
revolutionized various industries. By comprehending
their principles and applications, we can harness their
unique properties to create innovative technologies,
enhance imaging capabilities, and explore the wonders
of the universe.

10. Thank you!
submitted by: Maria Olivia Michael
XII C
Roll No 5