NSO Level 1- Science Olympiad (SOF) Class 10: Questions 504 - 508 of 986

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Question 504

Question

MCQ▾

Which is not a physical property of carbon?

Choices

Choice (4)Response

a.

Carbon is Very brittle.

b.

Diamond is highly transparent

c.

Graphite is insulator of electrical conductivity.

d.

Graphite, diamonds and coal are all nearly pure forms of carbon

Passage

Direction: Observe the following diagram and answer the question below

The Eye and Lens

Question 505 (1 of 4 Based on Passage)

Question

MCQ▾

The lens of the eye can become thicker and thinner. Why is this flexibility useful?

Choices

Choice (4)Response

a.

The lens can allow varying amount of light to enter the eye

b.

The lens not likely to break

c.

The lens allow to the eye to focus on far object as well as near object

d.

The eye can move up, down, left and right

Question 506 (2 of 4 Based on Passage)

Question

MCQ▾

Myopia caused by

Choices

Choice (4)Response

a.

Decrease in curvature of the lens

b.

Increase in length of the eyeball

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question 507 (3 of 4 Based on Passage)

Question

MCQ▾

What is the true about the condition of myopia?

Choices

Choice (4)Response

a.

The lens of the eye is too thin

b.

The image focuses after in reaches it the retina

c.

The eye from front to back is longer than normal

d.

All of the above

Question 508 (4 of 4 Based on Passage)

Question

MCQ▾

The lens in the eye and concave lens are serve the same general purpose.

What is that purpose?

Choices

Choice (4)Response

a.

To reduce the amount of that enters the eye

b.

To refract light

c.

To open up the eye to light

d.

To reflect light

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