# NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 188 - 192 of 2000

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## Question number: 188

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MCQ▾

### Question

In the figure . Then

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 189

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MCQ▾

### Question

A quadrilateral in which diagonals are equal and bisect each other perpendicularly in a ________.

### Choices

Choice (4)Response

a.

Rectangle which is not a square

b.

Rhombus which is not a square

c.

Square

d.

All of the above

## Question number: 190

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MCQ▾

### Question

What is density of a substance?

### Choices

Choice (4)Response

a.

Product of mass and volume

b.

Ratio of mass and temperature

c.

Ratio of mass and volume

d.

Product of mass and temperature

## Question number: 191

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MCQ▾

### Question

A rotating ray after making a complete rotation coincides with its initial position. The angle formed is

### Choices

Choice (4)Response

a.

Right angle

b.

Reflex angle

c.

Complete angle

d.

Straight angle

## Question number: 192

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MCQ▾

### Question

AB is a chord of a circle of radius 4.2 cm and P is a point on it which divided it into two parts in the ratio 7: 9. If P is 3.8 cm distant from the center O, the length of AB is

### Choices

Choice (4)Response

a.

5.44 cm

b.

8 cm

c.

1.36 cm

d.

2.72 cm

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