Questions

Q:

The  optical  phenomenon  that  is  primarily responsible  for  the  observation  of  rainbow on a rainy day is 

A) diffraction B) interference
C) dispersion D) reflection
 
Answer & Explanation Answer: C) dispersion

Explanation:

A rainbow is a natural spectrum appearing in the sky after a rain shower. It is caused by dispersion of sunlight by tiny water droplets, present in the atmosphere. A rainbow is always formed in a direction opposite to that of the Sun. The water droplets act like small prisms. They refract and disperse the incident sunlight, then reflect it internally, and finally refract it again when it comes out of the raindrops.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The substances which reduce friction are called _________.

A) irregularities B) lubricants
C) adhesives D) viscous
 
Answer & Explanation Answer: B) lubricants

Explanation:
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Filed Under: Physics
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Q:

Filament of electric bulb is made of _____.

A) Magnesium B) Lead
C) Tin D) Tungsten
 
Answer & Explanation Answer: D) Tungsten

Explanation:
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Filed Under: Physics
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Q:

Radiocarbon dating technique is used to estimate the age of

A) fossils B) rocks
C) monuments D) soil
 
Answer & Explanation Answer: A) fossils

Explanation:

Radiocarbon dating also referred to as carbon dating or carbon-14 dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.

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Filed Under: Physics
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Q:

Oxygen released during photosynthesis comes from

A) Sugar B) Water
C) Co2 D) Pyruvic acid
 
Answer & Explanation Answer: B) Water

Explanation:

Oxygen released during photosynthesis comes from splitting of water.

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

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Q:

In the following question, a sentence is given with some bold words which may contain errors. Below the sentence, a table is given with two columns in which column 'A' contains the list of bold words, and in column 'B' the suggested corrections are listed. You have to choose the best alternative among the four given options. If no correction is required against the given bold words, mark (E), i.e., "None of the above" as your answer.
A warm story of humility and forgiveness comes from the US city of Fort Smith where a Masjid not only forgave the young man who vandalised the mosque but also helped pay his fine so that he doesn't get charged to jail and his future is saved.

A) Both (1)-(5) and (4)-(8) B) (2)-(6)
C) (1)-(5) D) (4)-(8)
 
Answer & Explanation Answer: A) Both (1)-(5) and (4)-(8)

Explanation:

Scepticism refers to doubt. The incident that is discussed in the sentence shows love and the positive side of a human being. Thus 'humanity' is the appropriate word. Hence (1) should be replaced by (5). When a person is charged with a crime, a formal allegation (a statement not yet proven) of an offence is made. But the sentence says he was going to jail, which means the allegations have been
proved to be true. He has already been sentenced. Thus, (4) must be replaced by (8). Vandalised and destroyed are synonyms. Also, if the Masjid forgot about the boys, they wouldn’t have bothered to pay his fine. So, no changes in these two options. Hence, the correct answer is 1.

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

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Q:

China does not share its border with which Indian state?

A) Bihar B) Arunachal Pradesh
C) Himachal Pradesh D) Sikkim
 
Answer & Explanation Answer: A) Bihar

Explanation:
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Filed Under: Indian Geography
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Q:

Which European Country provide its currency for Bank of Central African states

A) France B) UK
C) Netherlands D) Germany
 
Answer & Explanation Answer: A) France

Explanation:
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Filed Under: World Organisations

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