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 c Circle c: Circle through B with center O Arc d Arc d: Semicircle through E and F Arc e Arc e: Semicircle through G and H Segment f Segment f: Segment [B, A] Segment g Segment g: Segment [A, C] Segment h Segment h: Segment [C, D] Segment i Segment i: Segment [D, O] Point O O = (3.46,2.88) Point O O = (3.46,2.88) Point O O = (3.46,2.88) Point B B = (1.06,2.88) Point B B = (1.06,2.88) Point B B = (1.06,2.88) Point A Point A: Point on c Point A Point A: Point on c Point A Point A: Point on c Point C Point C: Point on c Point C Point C: Point on c Point C Point C: Point on c Point D Point D: Point on c Point D Point D: Point on c Point D Point D: Point on c 125â° text1 = “125â°”

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

Representing the 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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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

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

Developed by: