Q:

A cube is inscribed in a sphere. A right circular cylinder is within the cube touching all the vertical faces. A right circular once is inside the cylinder. Their heights are same and the diameter of the cone is equal to that of the cylinder.

Consider the following statements:

1) The surface area of the sphere is √5 Times the curved surface area of the cone.

2) The surface area of the cube is equal to the curved surface area of the cylinder. Which of the above statements is/are correct?

A) 1 only	B) 2 only
C) Both 1 and 2	D) Neither 1 nor 2

Answer & Explanation Answer: D) Neither 1 nor 2

Explanation:

The top view of the given assembly will look like the figure above

Outermost is the sphere. Inside that there is a cube and within that there is a cone and cylinder with same radius.

Here side of cube = a

Diameter of Sphere = body diagnol = √3 a

Radius of sphere = √3 a/2 =r1

Height of Cylinder = Height of cone = side of cube = a =h

Radius of cylinder = Radius of cone = side of cube/2 = a/2 =r2(as shown in the figure)

Thus neither 1 nor 2 are true

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Make a scene

A) To perform beautifully in front of an audience.	B) Make a public disturbance or excited emotional display.
C) To narrate an elaborate false story.	D) Describe a scene in so much detail that it comes vivid.

Answer & Explanation Answer: B) Make a public disturbance or excited emotional display.

Explanation:

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Q:

______ bond holds the atoms together within a water molecule.

A) Nonpolar covalent	B) Polar covalent
C) Ionic	D) Co-ordinate

Answer & Explanation Answer: B) Polar covalent

Explanation:

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Filed Under: Chemistry
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Q:

In which of the following solution the concentration of H+ ion is the maximum?

A) pH 6	B) pH 8
C) pH 5	D) pH 9

Answer & Explanation Answer: C) pH 5

Explanation:

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Q:

Which element is not a part of a nitrogenous base?

A) Hydrogen	B) Phosphorous
C) Carbon	D) Nitrogen

Answer & Explanation Answer: B) Phosphorous

Explanation:

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Q:

What was the major decision that took place in 1987 Montreal Conference?

A) Developed countries will completely ban CFC production by 2000	B) Developed countries will completely ban CFC production by 2010
C) Developing countries will completely ban CFC production by 2000	D) Developing countries will completely ban CFC production by 2020

Answer & Explanation Answer: A) Developed countries will completely ban CFC production by 2000

Explanation:

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Filed Under: Indian Economy
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Q:

Choose the word that best defines the given phrase‘The identification of a disease by its symptoms’

A) Prescription	B) Prognosis
C) Diagnosis	D) Biopsy

Answer & Explanation Answer: C) Diagnosis

Explanation:

Prescription is an instruction written by a medical practitioner that authorizes a patient to be issued with a medicine or treatment.

Prognosis is a forecast of the likely outcome of a situation.

Diagnosis is the identification of the nature of an illness or other problem by examination of the symptoms.

Biopsy is an examination of tissue removed from a living body to discover the presence, cause, or extent of a disease.

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Q:

In the following questions, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Children need to be taught the importance of hygiene early on so that it becomes a _____. Children are the most _____ to hygiene-related disorders like skin issues, rashes, infections, wounds, etc. Teach them early on about what to _____. Teach them that taking a few _____ measures to prevent infections and diseases is _____.

Children are the most _____ to hygiene-related disorders like skin issues, rashes,

A) innocent	B) responsible
C) pliable	D) susceptible

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