Answer:
Explanation:
One
The best way to learn how to do this is to draw the principle rays.
Before beginning, make sure you know the following
- The optical axis contains f1 and f2.
- The principle rays are going to determine where the image is.
- One end of the object (P) and one end of the image (P') is on the optical axis
Now lets draw those rays.
- Ray one goes from Q to the center of the lens. This line is present in every diagram.
- Ray Two goes from Q to the lens. It is parallel to the optical axis.
- Ray Three goes from Q through F1 till it hits the lens. It then travels parallel to the optical axis.
What do all three rays have in common. They all start at Q and go eventually to the lens. That makes A the answer.
B None of the rays are obedient to A. B is false
C Ray One is never parallel to the optical axis. C is false.
D Ray One does not go through the focal point.
Two
He should draw the diagram and extend ray one so it goes through f1. Where the extension crosses ray 1 is where the image's head is. Here are its properties.
1. It is virtual
2. It is smaller than the object.
3. It is between the focus and the lens.
The answer is B
