General Lens Question: Diverging or Converging

AI Thread Summary
The discussion centers on determining whether a meniscus lens is converging or diverging based on curvature. It is clarified that if the curvature of the first lens is greater, the lens will converge, while a greater curvature in the second lens results in divergence. Additionally, the thickness of the lens plays a role: a thicker middle indicates convergence, whereas a thinner middle suggests divergence. This understanding helps in identifying the optical behavior of the lens. The key takeaway is that curvature and thickness are critical factors in lens classification.
digipony
Messages
35
Reaction score
0

Homework Statement



General question here: If I have a lens that looks like two concave lenses put together (I believe it is called a Meniscus), how do I conceptually tell whether the lens should be converging or diverging? I think I remember reading something saying that it depends upon which lens has the greater Curvature but I can't find where I saw this...
Any help would be greatly appreciated! Thanks!

Homework Equations


The Attempt at a Solution

 
Physics news on Phys.org
Never mind: figured it out. If the curvature of the first lens is greater, then it is converging. If the curvature of the second lens is greater, it is diverging.
 
If the lens is thicker in the middle, it's converging; if thinner, diverging.
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »

Similar threads

Converging Meniscus Lens, Filled with Fluid
Replies
1
Views
2K
Inserting thick lenses into a thin lens system and deducing values
Replies
1
Views
2K
Calculate the focal distance of the duplicate
Replies
3
Views
1K
Converging Lens and Plane Mirror Question
Replies
1
Views
3K
Divergine Lens Embedded within Converging Lens
Replies
1
Views
1K
Focal Length Problem: -30cm Converging/Diverging Lens
Replies
5
Views
1K
Contact Lenses Optics Problem (Two-Parts)
Replies
2
Views
4K
Focal length of converging meniscus lens filled with a liquid
Replies
9
Views
8K
Magnification formula for a Galilean telescope
Replies
2
Views
5K
Geometric Optics - Converging Lens
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top