Exams Questions and Answers

Q:

The attenuation in optical fibre is mainly due to

A) Scattering	B) Absorption
C) Both (a) and (b)	D) Neither absorption nor scattering

Answer & Explanation Answer: A) Scattering

Explanation:

The reason for transmitting data over optical fibers, is because the speed of data transmission through optical wires are equal to the speed of light. The intense speed of data transfer speed, has lead to the use of optical fibers. The optical fiber uses the technology of transferring light beams, from one end to the other end of optical cables. The attenuation in optical fiber is due to Scattering. The reason why scattering is caused, due to the folding, in the wire.

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Filed Under: Physics
Exam Prep: Bank Exams , CAT

0 1474

Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A) 11 – 121	B) 13 – 169
C) 19 – 361	D) 17 – 279

Answer & Explanation Answer: D) 17 – 279

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 1474

Q:

Simplify $576 b^{3} x^{2} a^{4} z^{3} / 36 a^{3} b^{2} z$

A) 16bx2az2	B) 8bx2az2
C) 32ba2 z	D) 32bxa2

Answer & Explanation Answer: A) 16bx2az2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) Aizwal	B) Agartala
C) Shillong	D) Darjeeling

Answer & Explanation Answer: D) Darjeeling

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

Ashoka was a king of which dynasty?

A) Pradyota	B) Haryanka
C) Maurya	D) Nanda

Answer & Explanation Answer: C) Maurya

Explanation:

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Filed Under: Indian History
Exam Prep: Bank Exams

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Q:

During their rule the British persuaded or forced cultivators in Assam to grow __________.

A) Jute	B) Tea
C) Sugarcane	D) Wheat

Answer & Explanation Answer: B) Tea

Explanation:

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Filed Under: Indian History
Exam Prep: Bank Exams

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Q:

Who discovered Photon?

A) George Crum	B) Albert Einstein
C) Henry Cavendish	D) Humphry Davy

Answer & Explanation Answer: B) Albert Einstein

Explanation:

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Filed Under: Inventions
Exam Prep: Bank Exams

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Q:

If $x = \sqrt{a} + \frac{1}{\sqrt{a}}, y = \sqrt{a} - \frac{1}{\sqrt{a}}, (a > 0),$ then the value of $x^{4} + y^{4} - 2 x^{2} y^{2}$ is

A) 16	B) 20
C) 10	D) 5

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