Yin let's go of a helium balloon and watches it rise up from the ground.
Which of the following stay unchanged in her eyes?
Note: Assume that she sees a sharp image of the balloon as it rises.
(Choice A)
A
Tension in the ciliary muscles.
(Choice B)
B
Curvature of the lens.
(Choice C)
C
Focal length
(Choice D)
D
Image distance
Which of the following stay unchanged in her eyes?
Note: Assume that she sees a sharp image of the balloon as it rises.
(Choice A)
A
Tension in the ciliary muscles.
(Choice B)
B
Curvature of the lens.
(Choice C)
C
Focal length
(Choice D)
D
Image distance
Answers & Comments
Answer:
D) image distance
Explanation:
as the balloon is moving the ciliary muscle will contract and relax...so ciliary muscle will change
and the eye lens will also change in order to focus at the moving object
and the focal length will also change...because the baloon distance is changing and eye lens curvature is changing
but the image will always form at the retina...hence image distance will never change..
hope it helps...