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Could;you;please answer the marked questions

Could;you;please answer the marked questions 2. 4. Cala •late the number of images of an object if two plane mirrors are placed making an angle of 400. Write an activity to show dispersion of light Draw a diagram of eye and label the parts: comea,lens,iris,pupil,ciliary muscles, retina , optic nerve 2. Eyes of the nocturnal birds have large comea and large pupil. How does this structure help them? 3. When entering a darkened cinema hall from bright light, we cannot see at first but gradually tl-æ vision becomes visible. 'My? 4. An old person finds difficulty in watching number board of a far bus? What defect is the person suffering from? How can it be corrected? 5. Why we can't see things very close to our eyes?

Kindly, refer to the below link for similar query,

Q.2 https://www.meritnation.com/ask-answer/question/a-light-bulb-is-placed-between-two-plane-mirrors-inclined-at/light-reflection-and-refraction/10326755 

Q.2(HOTS) https://www.meritnation.com/ask-answer/question/eyes-of-nocturnal-birds-have-large-cornea-a-large-pupil-h/light/9325607 

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(360?40)-1 = 8
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hots 3 : when we enter a darkened cinema hall from a bright place at that time our eye pupil are contracted and then when we enter the hall which is darkened then our eye pupil expands and due to this contraction and relaxation of our eyepupil we cannot see clearly at first but it becomes clear gradually
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hots:5  we cannot see  object very close to our eyes because due to power of acommodation of our eye which states that our eyes can see objects clearly that are placed more than the distance of 25cm
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