Science Practice Quiz 97

Q1.A person suffering from myopia can clearly see which type of objects?

A. Only distant objects B. Only nearby objects C. Both distant and nearby objects D. Neither distant nor nearby objects

Q2.In a myopic eye, where is the image of a distant object formed?

A. Behind the retina B. At the retina itself C. In front of the retina D. On the optic nerve

Q3.Which of the following is a potential cause for the defect of myopia?

A. Focal length of the eye lens being too long B. Excessive curvature of the eye lens C. Eyeball becoming too small D. Weakening of ciliary muscles

Q4.Myopia can be corrected by using which type of lens?

A. Convex lens B. Concave lens C. Bifocal lens D. Cylindrical lens

Q5.A person with hypermetropia experiences difficulty in seeing which objects distinctly?

A. Distant objects B. Nearby objects C. Objects in dim light D. Objects in bright light

Q6.For a person with hypermetropia, how is their near point affected compared to the normal near point (25 cm)?

A. It is closer than 25 cm B. It is exactly 25 cm C. It is farther away from 25 cm D. It fluctuates around 25 cm

Q7.In a hypermetropic eye, where are the light rays from a closeby object focused?

A. In front of the retina B. At the retina C. Behind the retina D. On the iris

Q8.Which type of lens is used to correct hypermetropia?

A. Concave lens B. Cylindrical lens C. Convex lens D. Prismatic lens

Q9.Presbyopia is a defect where the eye's power of accommodation usually decreases, leading to difficulty in seeing which objects comfortably and distinctly?

A. Distant objects B. Objects in low light C. Nearby objects D. Objects with specific colours

Q10.What is the primary cause mentioned for the defect of Presbyopia?

A. Excessive curvature of the eye lens B. Elongation of the eyeball C. Gradual decrease in power of accommodation with ageing D. Focal length of the eye lens being too long

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Science Practice Quiz 97