Kit Library / Science / Physics
⚡ Topic Learning KitVision & Light
Shared by a Veda learner · Generated with Veda AI
What you'll study, topic by topic
The Human Eye and the Colourful World
~8 min · full explanation, examples & memory tricks in the app
Try the smart MCQs from this kit
51 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Which part of the human eye controls the amount of light entering the eye?
BeginnerShow answer & explanation
Iris
The iris controls the size of the pupil, thereby regulating the amount of light entering the eye.
The focal length of the eye lens can be changed by the action of:
IntermediateShow answer & explanation
Ciliary muscles
Ciliary muscles contract and relax to change the curvature of the eye lens, thus adjusting its focal length.
The least distance of distinct vision for a normal human eye is:
BeginnerShow answer & explanation
25 cm
For a normal eye, the near point is about 25 cm, which is the least distance for clear vision.
Which defect of vision is corrected by using a concave lens?
IntermediateShow answer & explanation
Myopia
Myopia (nearsightedness) is corrected by a concave lens because it diverges light before it enters the eye, helping focus the image on the retina.
Study it properly — free, in the app
The full Veda Bites deck, complete notes, spaced-repetition flashcards, leveled MCQs, tests and games for this kit — plus Daily Facts and the Arena, every day.