These are highly detailed that I complied over two years of studying this subject. Since I took notes like crazy, no area is left untouched so everything is there if you are struggling to understand a concept or equation. They are colourful, organised and neat, so perfect for the eye to understand.
,22nd
February 2024 Telescopes :
Refracting Telescope
Parallel
Convex Lense
Riagrams for Rays
3
& ·
I &
-Light Rays that are parallel when
entering lens
,
------
7 -
object is
infinite distance
away , Im
ciple axis
focal point (*)
-
-Convex lenses cause to
converge the
at
3
rays
(
1 f
-Distance between centre
of lens a
focal point is
optical
axig focal length (4) ·
my when
object of infinity
.
Parallel
-If Rays aren't parallel to principle axis
,
focal point on
feplane
-........
Focal Plane
:Incident Rays
to earnote
a
pare
Note
-
Rays 't come
from infinity
-Ray not
from Infinity : Less man com
- 3
·
When
Rays come
from a point which equals the focal length,
they parallel to
leave eachother
.
- PA
Viewing from a dens
-s
Eye views
parallel rays as
if they've come
" from infinity.
------ -More
⑳
-
relaxing for eye
--
3
--
Y
S
S
-
I
-
Object therefor has been
magnified
S S
virtual S
S
, Drawing Ray diagram for Refracting Telescope ① Draw
② Gabel
eyepiece
fo
r
objective
life on
less
principle
I
!
co
axis-close to
eye piece
& *
.
Light from ③ make focus now fore .
infinity " ④
ray from focus
Draw a
S
through centre of
objective
·
lene.
I
⑤ Draw
rays from focus
S
2
top a bottom of
Y
S ro
!
Eye
pieon objective
⑥
Objective drawing left of
continue
Lens objective parallel ,
to
cenne
⑦ Draw ray.
conservation line
from focus through of eyepiece centre .
⑧ Pour 3
rays parallel from
bottom
of eyepiece moving right
.
,
⑨ Join 3
focus
to
⑳ Add
rays
labels
r arrows .
Magnification of Refracting Telescope
(m =
fo focal length of objective =
fe =
focal length of eyepiece
M =
no unit
Monday
Zom
February 2024 Subtended
Angles
Objects for away angles
-
are , subtended
small
(height of no
are
small approximations
object / angle
- use
E(
Length of hypotenuse length of
-s =
(d)
Distance
of object (d) adjacent
- sinf tan8 O
-Angle in radians :
(A =
1 I
-
angles
=
subtended
d =
distance
no =
diamete
Angular magnification
/M-00-angle
O
angle subtended
by image at
eye
=
,
subtended object at
by e
o
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller mariakatfret. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.59. You're not tied to anything after your purchase.
