# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 616 - 622 of 1484

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## Question number: 616

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MCQ▾

The roots of are

### Choices

Choice (4)Response

a.

0,1, -1 and -3

b.

0,1 and 3

c.

0 and 1

d.

1

## Question number: 617

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MCQ▾

### Question

The roots of the equation are

### Choices

Choice (4)Response

a.

Imaginary

b.

Rational and equal

c.

Irrational and unequal

d.

Real and equal

## Question number: 618

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MCQ▾

### Question

If has roots which are numerically equal but of opposite signs, the value of ‘p’ must be

### Choices

Choice (4)Response

a.

1

b.

c.

d.

## Question number: 619

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MCQ▾

### Question

With a bucket of radius 7 cm and height 16 cm, 12 buckets of lime was poured to form a conical heap. If its area is , the canvas required to cover it is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 620

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MCQ▾

### Question

If A = then = ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 621

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MCQ▾

### Question

The roots of the equation can be obtained graphically by finding the abscissas of the pointing of intersection of each of the following pairs of equations except

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 622

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MCQ▾

### Question

A circus tent is in the form of a cone over a cylinder. The diameter of the base is 8 m, the height of cylindrical part is 2.4 m and the total height of the tent is 5.4 m. The canvas required for the tent is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

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