Thin Lens & Images: Real, Inverted & Smaller Objects

AI Thread Summary
A thin converging lens forms a real image when the object is placed outside the focal length. It also produces an inverted image under the same condition. For the image to be smaller than the object, the object must be positioned outside twice the focal length. The responses provided in the discussion confirm the accuracy of these conclusions. This understanding is essential for solving related optics problems effectively.
Glen Maverick
Messages
14
Reaction score
0

Homework Statement



Under what conditions will a thin converging lens form:
a) a real image,
b) an inverted image,
and c) an image smaller than the object?

Homework Equations



none

The Attempt at a Solution



I have concluded that:
a) the object needs to be outside the focal length
b) the same
c) the objects needs to be outside twice the focal length.

I am not sure if the answers are right. Can you please check for me? Thank you!
 
Last edited:
Physics news on Phys.org
Your answers are correct.
 
Thank you to both Stanton and rl.bhat. I was looking for this problem. :)
 
Last edited:
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...
Thread 'Trying to understand the logic behind adding vectors with an angle between them'
My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
Back
Top