General Knowledge Questions

Q:

In spherical polar coordinates (l, q, a), q denotesthe polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

A) Psinq sina B) Psinq cosa
C) Pcosq sina D) Pcosq cosa
 
Answer & Explanation Answer: A) Psinq sina

Explanation:

The Cartesian Coordinates can be retrieved from spherical coordinates (l,q,a) by:

X = r.sinq.cosa

Y = r.sinq.sina

Z = r.sinq

Using the same we get for P,

Y = P.sinq.sina

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Q:

Which one of the following elements does not form solid hydrogen carbonate?

A) Sodium B) Potassium
C) Caesium D) Lithium
 
Answer & Explanation Answer: D) Lithium

Explanation:

Potassium bicarbonate (also known as potassium hydrogen carbonate or potassium acid carbonate) is the inorganic compound with the chemical formula KHCO3. It is a white solid

Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder.

LiHCO3 is found in solution form while rest alkali metals hydrogen carbonates are solid due to the anomalous properties of Li and its diagonal relationship with the Mg.

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Filed Under: Chemistry
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Q:

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

She must ______ a great time at her birthday party.

A) be having B) has
C) be had D) is having
 
Answer & Explanation Answer: A) be having

Explanation:
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Filed Under: English
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Q:

Which is a compound that contains carbon?

A) Ethane B) Propane
C) Methane D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The compound methane is a simple hydrocarbon contains one carbon bonded to four hydrogens. Ethane is a simple hydrocarbon which contains two carbon atoms and four hydrogen atoms. Similarly, propane with three carbons.

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Filed Under: Chemistry
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Q:

Which country won the team event at 1st Mallakhamb World Championship?

A) China B) Nepal
C) Japan D) India
 
Answer & Explanation Answer: D) India

Explanation:

India emerged as winners in the team event at the first Mallakhamb World Championship held in Mumbai.

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Q:

In oceania, most towns began as

A) Colonial ports B) plantations
C) tribal ritual centers D) capital cities
 
Answer & Explanation Answer: A) Colonial ports

Explanation:

Oceania is a geographic region comprising Melanesia, Micronesia, Polynesia and Australasia. In Oceani, most towns began as Colonial Ports.

oceania1532071449.jpg image

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Filed Under: World Geography
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Q:

The best - paid player in the world playing with Barcelona team

Answer

Lionel Messi

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Subject: Sports

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Q:

Who is the author of the book ' The Last Word'

Answer

Hanif Qureishi

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