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

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Q:

A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is

A) 60 deg	B) 0 deg
C) 90 deg	D) 30 deg

Answer & Explanation Answer: A) 60 deg

Explanation:

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Exam Prep: Bank Exams

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Q:

Nautical miles to km formula

Answer

km ÷ 1.852 = nautical miles

Hence, 1 nmi = 1.852 km.

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Subject: Physics Exam Prep: CAT , Bank Exams

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Q:

If two coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it?

A) 1 Ampere	B) 1/2 Ampere
C) 1/4 Ampere	D) 2 Amperes

Answer & Explanation Answer: D) 2 Amperes

Explanation:

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Q:

Brain fever is a disease spread through which of the following?

A) Flies	B) Mosquito
C) Virus	D) Cockroach

Answer & Explanation Answer: B) Mosquito

Explanation:

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Filed Under: General Science
Exam Prep: Bank Exams

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Q:

During the day, the direction of the wind would be from the __________________

A) sea to the land	B) land to the sea
C) valleys to the mountains	D) mountains to the valleys

Answer & Explanation Answer: A) sea to the land

Explanation:

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Filed Under: General Awareness

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Q:

What was the theme of 48th annual meeting of the World Economic Forum (WEF) which was held in Davos city?

A) Discover, remember and share	B) Creating shared future in a fractured world world
C) Shared values, common destiny	D) Connecting ships, ports and people

Answer & Explanation Answer: B) Creating shared future in a fractured world world

Explanation:

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Exam Prep: Bank Exams

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Q:

Which Indian industrialist who was elected as the Chairman of the International Chamber of Commerce (ICC) in 2016 ?

A) Anil Ambani	B) Sunil Mittal
C) Mukesh Ambani	D) Lakshmi Mittal

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