NSO Level 1- Science Olympiad (SOF) Class 10: Questions 880 - 883 of 986

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Question number: 880

» Acids, Bases and Salts

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MCQ▾

Question

of a solution of is found to be completely neutralized by of a given solution of . If we take of the same solution of the amount Solution (the same solution as before) required to neutralize it will be

Choices

Choice (4)Response

a.

10

b.

17

c.

22

d.

20

Question number: 881

» Light - Reflection and Refraction

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MCQ▾

Question

If denote angle of incidence and angle of refraction, respectively, then

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 882

» Sources of Energy

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MCQ▾

Question

Read the given statements and mark the correct option

Statement 1: Solar cooker in box is covered with black sheet and its inner walls are painted black to increase heat absorption

Statement 2: Any time food cooked at night or on a cloudy day

Choices

Choice (4)Response

a.

Only statement 2 is correct

b.

Only statement 1 is correct

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 883

» Light - Reflection and Refraction

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MCQ▾

Question

Select the only incorrect option in case of a convex mirror:

Choices

Choice (4)Response

a.

Table of the case of a convex mirror: Choice A

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At infinity

At the focus

Much smaller than object

Real and inverted

b.

Table of the case of a convex mirror: Choice B

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At the Focus

At infinity

Smaller than the object

Virtual and Erect

c.

Table of the case of a convex mirror: Choice C

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

Beyond

Between on the other side of the lens

Smaller than the object

Real and inverted

d.

Table of the case of a convex mirror: Choice D

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At

At on the other side of the lens

Higher size of the object

Virtual and Erect

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