NSO Level 1- Science Olympiad (SOF) Class 7: Questions 37 - 42 of 593

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Question number: 37

» Light

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MCQ▾

Question

Which type of mirror do the dentists use to focus a beam of light to see inside a patient’s mouth?

Choices

Choice (4) Response

a.

Concave Mirror

b.

Convex Mirror

c.

Plane Mirror

d.

Question does not provide sufficient data or is vague

Question number: 38

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MCQ▾

Question

When object is placed very close to the convex lens, the image is:

Choices

Choice (4) Response

a.

Erect, virtual and smaller than object

b.

Erect, virtual and larger than object

c.

Erect, real and smaller than object

d.

Inverted, real and larger than object

Question number: 39

» Mental Ability

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MCQ▾

Question

Aryan has 5 pairs of jeans, 4 shirts and 2 pairs of shoes. He wears a different outfit everyday. How many possible combinations can he wear?

Choices

Choice (4) Response

a.

34

b.

40

c.

38

d.

42

Question number: 40

» Light

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MCQ▾

Question

Let two planes mirrors are placed parallel to each other, and a light ray incident on a mirror, which is reflected repeatedly. After some reflection the intensity of light rays:

Choices

Choice (4) Response

a.

Decrease

b.

Increase

c.

Remains same

d.

Question does not provide sufficient data or is vague

Question number: 41

» Light

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MCQ▾

Question

A disc on which seven colors are painted in seven different sectors, is called:

Choices

Choice (4) Response

a.

Galileo’s disc

b.

Newton’s disc

c.

Faraday’s disc

d.

Rutherford’s disc

Question number: 42

» Respiration in Organisms

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MCQ▾

Question

The is also called voice box.

Choices

Choice (4) Response

a.

Septum

b.

Epiglottis

c.

Larynx

d.

Pharynx

Developed by: