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Shivani cannot see objects placed closer than 25cm clearly. She goes to an optician to get her eyes checked, however she does not seem to have any power. Use this information to answer the questions given below:

1. Shivani cannot see the objects clearly as the normal human eye cannot see clearly the objects placed closer than 25cm. True or false?

(i) TRUE

(ii) FALSE

2. On which layer of the eye is the object focused?

(i) Lens

(ii) Ciliary muscles

(iii) Retina

(iv) Optic nerve

3. The least distance of distinct vision for a young adult with normal vision is about 2.5cm. True or False?

(i) TRUE

(ii) FALSE

4. Which part of the eye is responsible for the change in focal length of an eye lens?

(i) Lens

(ii) Ciliary muscles

(iii) Retina

(iv) Optic nerve

5. The image is formed on the retina when we increase the distance of an object from the eye. True or false?

(i) TRUE

(ii) FALSE

1 Answer

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Best answer

1. (i) TRUE

2. (iii) Retina

3. (ii) FALSE

4. (ii) Ciliary muscles

5. (i) TRUE

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