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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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Learning is the knowledge of that which is not generally known to others, and which we can only derive at second­hand from books or other artificial sources. The knowledge of that which is before us, or about us, which appeals to our experience, passions, and pursuits, to the bosoms and businesses of men, is not learning. Learning is the knowledge of that which none but the learned know. He is the most learned man who knows the most of what is farthest removed from common life and actual observation. The learned man prides himself in the knowledge of names, and dates, not of men or things. He thinks and cares nothing about his next­door neighbours, but he is deeply read in the tribes and castes of the Hindoos and Calmuc Tartars. He can hardly find his way into the next street, though he is acquainted with the exact dimensions of Constantinople and Peking. He does not know whether his oldest acquaintance is a knave or a fool, but he can pronounce a pompous lecture on all the principal characters in history. He cannot tell whether an object is black or white, round or square, and yet he is a professed master of the optics and the rules of perspective.


The passage suggests that a learned man

A) understands his neighbours B) does not know his old acquaintances
C) is not concerned about names and dates D)  is interested in travelling
 
Answer & Explanation Answer: B) does not know his old acquaintances

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

What are the original members of Bank of Central African States

A) Cameroon and Central African Republic B) Chad and Republic of the Congo
C) Gabon D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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Filed Under: World Organisations

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Q:

A factory employs skilled workers, unskilled workers and clerks in the proportion 8 : 5 : 1, and the wages of a skilled worker, an unskilled worker and a clerk are in the ratio 5 : 2 : 3. When 20 unskilled workers are employed, the total daily wages of all amount to Rs 318. Total wages paid to each category of workers are

A) Rs 240, Rs 60, Rs 18 B) Rs 200, Rs 90,Rs 28
C) Rs 150, Rs 108, Rs 60 D) Rs 250, Rs 50, Rs 18
 
Answer & Explanation Answer: A) Rs 240, Rs 60, Rs 18

Explanation:
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Q:

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it. An exact copy

A)  Facsimile B)  Twin
C) Mirror D)  Clone
 
Answer & Explanation Answer: A)  Facsimile

Explanation:
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Filed Under: English
Exam Prep: TOEFL , GRE , CAT

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Q:

Which of the following is not soluble in water?

A) sodium chloride B) potassium sulfate
C) copper(II) hydroxide D) silver nitrate
 
Answer & Explanation Answer: B) potassium sulfate

Explanation:

We know that,

All nitrates are soluble in water.

All chlorides are soluble in water with the exception of those formed with silver , lead , mercury ions as all halides are soluble.

Sulphates are soluble in water.

Hydroxides are not soluble in water.

 

Hence, copper(II) hydroxide is not soluble in water.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 2274
Q:

How many interrupts are there in 8085?

Answer

There are 12 interrupts in 8085.

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Subject: Hardware

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Q:

The name of ancient Egyptian script is ________

A) Cuneiform B) Hieroglyphic
C) Demotic D) There was no script
 
Answer & Explanation Answer: B) Hieroglyphic

Explanation:

The Egyptian scripts is known as Hieroglyphic which means 'sacred writing' . It consisted of 24 signs, each of which stood for a single consonant. Vowels were not written. Later the Egyptian started using symbols for ideas and the total number of signs rose to about 500. The writers, who constituted an important section of society , wrote with reed pens on the leaves of a plant called 'Papyrus' from which we get the word 'paper'.

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Filed Under: World History

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