NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 124 - 127 of 2000

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Question number: 124

» Chemistry » Matter

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MCQ▾

Question

Who discovered Law of conservation of mass?

Choices

Choice (4)Response

a.

Dalton

b.

Proust

c.

Richter

d.

Lavoisier

Question number: 125

» Mathematics » Quadrilaterals

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MCQ▾

Question

In a parallelogram ABCD, and . Each of its diagonals is less than ________.

Choices

Choice (4)Response

a.

24 cm

b.

12.5 cm

c.

25.3 cm

d.

2.3 cm

Question number: 126

» Mathematics » Triangles

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MCQ▾

Question

If A: Two triangles are said to be congruent if two sides and one angle of one triangle are respectively equal to the two sides and an angle of the other and

R: Two triangles are congruent if two sides and the included angle of one must be equal to the corresponding two sides and included angle of the other triangle.

Then which of the following statement is correct?

Choices

Choice (4)Response

a.

A is false and R is correct explanation of A

b.

A is true and R is correct explanation of A

c.

A is true and R is false

d.

None of the above

Question number: 127

» Mathematics » Quadrilaterals

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MCQ▾

Question

ABCD is a parallelogram as shown in below figure. If and O is mid-point of AB, then is equal to:

Quadrilateral poly1Quadrilateral poly1: Polygon A, B, C, DSegment aSegment a: Segment [A, B] of Quadrilateral poly1Segment bSegment b: Segment [B, C] of Quadrilateral poly1Segment cSegment c: Segment [C, D] of Quadrilateral poly1Segment dSegment d: Segment [D, A] of Quadrilateral poly1Segment fSegment f: Segment [D, O] Segment gSegment g: Segment [O, C] Segment hSegment h: Segment [E, F] Segment h_1Segment h_1: Segment [E_1, F_1] Segment h_2Segment h_2: Segment [E_3, F_3] Segment h_3Segment h_3: Segment [E_2, F_2] Segment iSegment i: Segment [G, H] Segment i_1Segment i_1: Segment [G_1, H_1] Segment i_2Segment i_2: Segment [G_2, H_2] Segment i_3Segment i_3: Segment [G_3, H_3] Point AA = (3, -0.16) Point AA = (3, -0.16) Point AA = (3, -0.16) Point BB = (8.66, -0.16) Point BB = (8.66, -0.16) Point BB = (8.66, -0.16) Point CC = (9.54,2.84) Point CC = (9.54,2.84) Point CC = (9.54,2.84) Point DD = (3.84,2.76) Point DD = (3.84,2.76) Point DD = (3.84,2.76) Point OPoint O: Point on aPoint OPoint O: Point on aPoint OPoint O: Point on a

Image of a Parallelogram ABCD in Which AB = 2AD

Choices

Choice (4)Response

a.

b.

c.

d.

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