Froggy Jumps
Optiques géométriques (1ere C est D Physique 2)Version en ligne
Challenging questions on lenses.
1
What is the image type for a diverging lens with a real object placed far away?
2
Which sign does the focal length have in a standard lens convention for a diverging lens?
3
For a plane wave incident on a diverging lens, the emerging rays appear to originate from where?
4
The magnification produced by a lens is given by which relation?
5
What happens to the construction rays after a diverging lens?
6
Which equation relates object distance, image distance, and focal length for a lens?
7
For a thin lens, the principal planes coincide with which point?
8
A diverging lens forms what kind of image for a real object at any position?
9
What is the sign convention for image distance in a virtual image by a diverging lens?
10
Which optical device can be modeled as a negative focal length lens?
11
In a ray diagram for a converging lens, which ray passes through the focal point to become parallel?
12
What is the relationship between object distance and image distance for a lens with infinite object distance?
13
A converging lens forms a real image when the object is placed where?
14
What is the image nature for a real object placed at the focal point of a diverging lens?
15
Conjugation formula for a lens is which form?
16
Which lens causes rays to diverge as if coming from the focal point on the object side?
17
What is the image orientation for a virtual image produced by a diverging lens?
18
The image distance for a diverging lens is typically which sign?
19
Which quantity determines whether the image is real or virtual in lens theory?
20
If the object is at infinity, where do the rays appear to come from after a diverging lens?
21
The lateral magnification of a lens is given by which ratio?
22
In a ray diagram, which ray goes through the optical center without bending?
23
What happens to the focal length sign when converting to a lens with diverging properties?
24
Which of the following is true for a virtual image by a diverging lens?
25
What is the condition for a real image in a coaxial lens setup?
26
If object distance equals twice the focal length for a convex lens, the image is what?
27
Which ray after a converging lens travels parallel and then passes through which point?
28
What is the focal length sign for a convex lens?
29
A diverging lens forms a virtual image with what orientation?
30
Which equation directly relates f, u, and v in lens theory?
31
What kind of lens is typically used to correct myopia?
32
In a thin lens approximation, which point is essential for ray tracing through a lens?
33
For a diverging lens with a real object, the image is always what?
34
Which sign indicates a virtual image in lens notation?
35
The image distance for an object at infinity with a diverging lens is where?
36
What is the typical ray behavior for a ray through the center of a lens?
37
The lens equation for a thin lens is used to compute what?
38
A converging lens forms a real image when object distance is what relative to f?
39
Which type of image does a diverging lens never produce with a real object?
40
The sign of focal length for a diverging lens is:
41
In a real optical system, what does the conjugate relationship relate?
42
What is the common outcome when using a diverging lens for a distant object?
43
Which ray demonstrates the focal property: through focal point before or after lens?
44
For a convex lens, the magnification is greater than 1 when object is placed where?
45
What happens to the image when an object is beyond 2f in a converging lens?
46
Which lens type can create a real image of a distant object?
47
What is the image distance sign for a real image formed by a converging lens?
48
Which lens is typically used in peepholes due to its wide field?
49
In a lens system, the focal length depends on the lens:
50
The image distance v and object distance u are related by:
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