What do convergence and divergence mean? And why do they matter?
I understand that when a series diverges, y doesn't approach 0 when x approaches infinity, and converging series do. But what does this say? I just want to understand some applications. NOTE: I'm...
How to model converging illumination through object plane (in ZEMAX)
Oct 25, 2025 · Hello community, I'm designing a projection lens system for a 35mm film projector in Zemax OpticStudio and struggling with the correct sequential mode setup for the illumination …
Definition of convergence of sequences - Mathematics Stack Exchange
The important thing about a convergent sequence is that the convergent behavior has nothing to do with the first few terms; it doesn't have anything to do with the first hundred terms, or the first billion terms, …
Is there a pressure ratio limit for choked flow through a c-d nozzle ...
Jun 21, 2024 · The discussion revolves around the conditions for achieving choked flow through a converging-diverging (c-d) nozzle, specifically examining the effects of diameter and angle of the …
Calculating the Final Image Location in a Compound Lens System
Nov 8, 2008 · The problem involves a compound lens system consisting of two converging lenses with specified positions and focal lengths. An object is placed at a given location, and the goal is to …
Finding Image Distance with a Converging Lens: Magnifying Glass …
Nov 14, 2015 · The discussion revolves around a problem involving a converging lens, specifically a magnifying glass with a focal length of 15.0 cm. The original poster seeks to determine the distance …
How to Calculate Radii for a Symmetric Converging Lens to Double …
Feb 16, 2009 · The discussion focuses on calculating the radii of a symmetric converging lens required to double the image size of an object located 34.0 cm from a screen, using the index of refraction of …
Why Does Flow Become Supersonic in the Diverging Section of a …
Sep 6, 2007 · The discussion centers on the behavior of flow in converging-diverging nozzles, specifically addressing why flow becomes supersonic in the diverging section. It is established that a …
How to find if a sequence is converging or diverging?
How to find if a sequence is converging or diverging? Ask Question Asked 10 years ago Modified 5 years, 4 months ago
Focal Length - please check my work and tell me what's wrong.
Apr 8, 2010 · The discussion revolves around a two-lens system involving a diverging lens and a converging lens. The original poster presents a problem where a small object is positioned 25.0 cm …