Questions

Q:

Sound waves can not travel through a

 

A) copper wire placed in air B) silver slab placed in air
C) glass prism placed in water D) wooden hollow pipe placed in vacuum
 
Answer & Explanation Answer: D) wooden hollow pipe placed in vacuum

Explanation:

Sound is a kind of energy created when something vibrates. When this vibration reaches an ear, it is translated into what we recognize as a sound. Sound vibration must travel through matter. Therefore, it can travel through air and water but not through vacuum.

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Filed Under: Physics
Exam Prep: Bank Exams

1 17924
Q:

Which news paper has the motto - Journalism of Courage?

A) The Hindustan Times B) The Washington Post
C) The Indian Express D) The Guardian
 
Answer & Explanation Answer: C) The Indian Express

Explanation:
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Filed Under: Business Awareness

114 17903
Q:

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

Genetic variation is the cornerstone of evolution, without which there can be no natural selection, and so a low genetic diversity decreases the ability of a species to survive and reproduce, explains lead author Yoshan Moodley, Professor at the Department of Zoology, University of Venda in South Africa.

Two centuries ago, the black rhinoceros – which roamed much of sub Saharan Africa – had 64 different genetic lineages; but today only 20 of these lineages remain, says the paper. The species is now restricted to five countries, South Africa, Namibia, Kenya, Zimbabwe and Tanzania. Genetically unique populations that once existed in Nigeria, Cameroon, Chad, Eritrea, Ethiopia, Somalia, Mozambique, Malawi and Angola have disappeared. The origins of the 'genetic erosion' coincided with colonial rule in Africa and the popularity of big game hunting. From the second half of the 20th century, however, poaching for horns has dramatically depleted their population and genetic diversity, especially in Kenya and Tanzania.


What is important for evolution?

A) Genetic variation B) Large population
C) Mixing of species D) Survival of the fittest
 
Answer & Explanation Answer: A) Genetic variation

Explanation:
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Filed Under: English
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0 17896
Q:

In which of the following, functional group isomerism is not possible?

 

A) Alcohols B) Aldehydes
C) Alkyl halides D) Cyanides
 
Answer & Explanation Answer: C) Alkyl halides

Explanation:

The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of chemical compounds derived from alkanes containing one or more halogens.Halogens can’t form more than one bond in the context of common organic compounds and can’t form multiple bonds to carbon.

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Filed Under: Chemistry
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1 17873
Q:

Tansen Samman has been instituted by the Government of

A) Uttar Pradesh B) Gujarat
C) Maharashtra D) Madhya Pradesh
 
Answer & Explanation Answer: D) Madhya Pradesh

Explanation:
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Filed Under: Honours and Awards

36 17864
Q:

Select the antonym of

seedy

 

A) posh B) faded
C) decrepit D) ailing
 
Answer & Explanation Answer: A) posh

Explanation:
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Filed Under: English
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0 17861
Q:

Select the synonym of

metropolitan

A) idyllic B) arcadian
C) bucolic D) urbane
 
Answer & Explanation Answer: D) urbane

Explanation:
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0 17856
Q:

Rearrange the parts of the sentence in correct order.

 

P - Kohli, along with Deepika and Ranveer, has led the ascent of millennials to the top of the rankings.
Q - For the first time a female sportsperson has made it to the top 15.
R - This year saw PV Sindhu make an entry at 15.
S - Former captain Dhoni slipped from 9th place last year to 13th this year.

A) PSRQ B) QRSP
C) RSQP D) PRQS
 
Answer & Explanation Answer: A) PSRQ

Explanation:
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Filed Under: English
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0 17846