NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 386 - 388 of 2000

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Question number: 386

» Mathematics » Circles

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MCQ▾

Question

In the given figure, AOB is a diameter of a circle with center O. If , find .

Circle cCircle c: Circle through B with center OArc dArc d: Semicircle through E and FArc eArc e: Semicircle through G and HSegment fSegment f: Segment [B, A] Segment gSegment g: Segment [A, C] Segment hSegment h: Segment [C, D] Segment iSegment i: Segment [D, O] Point OO = (3.46,2.88) Point OO = (3.46,2.88) Point OO = (3.46,2.88) Point BB = (1.06,2.88) Point BB = (1.06,2.88) Point BB = (1.06,2.88) Point APoint A: Point on cPoint APoint A: Point on cPoint APoint A: Point on cPoint CPoint C: Point on cPoint CPoint C: Point on cPoint CPoint C: Point on cPoint DPoint D: Point on cPoint DPoint D: Point on cPoint DPoint D: Point on c125â°text1 = “125â°”

Image of a Circle with Center O and ∠BOD = 125

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 387

» Mathematics » Quadrilaterals

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Question

Two adjacent angles of a parallelogram are in the ratio 4: 5. The angles are:

Choices

Choice (4)Response

a.

120°, 60°

b.

80°, 100°

c.

90°, 70°

d.

40°, 50°

Question number: 388

» Chemistry » Matter

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Question

Two gas jars are kept as shown below. After some time both the gas jars are filled with brown gas.

Two gas jars are kept as shown Image

Two Gas Jars Are Kept as Shown Image

Which phenomenon describes this process?

Choices

Choice (4)Response

a.

Condensation

b.

Diffusion

c.

Filtration

d.

Evaporation

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