Questions

Q:

Solids have definite shapes.This is because

A) the forces of cohesion of the molecules within are very much less in them B) the forces of cohesion are very large
C) the forces of adhesion are large D) the forces of adhesion are less
 
Answer & Explanation Answer: B) the forces of cohesion are very large

Explanation:

Cohesion refers to attraction between molecules of the same kind while adhesion refers to attraction between different kinds of molecules

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Filed Under: Physics

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Q:

'Roaring Forties' are 

A) waterfalls in canada B) cyclonic winds
C) the turbulent years in world History from 1940 to 1944 D) westerly winds blowing through out the year over the oceans of the Southern Hemisphere between 40 degrees and 60 degrees south
 
Answer & Explanation Answer: D) westerly winds blowing through out the year over the oceans of the Southern Hemisphere between 40 degrees and 60 degrees south

Explanation:

The absence of a landmass within these latitudes in the southern hemisphere eliminate friction and lends force to these winds and hence derives the name

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Filed Under: World Geography

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Q:

Which is smallest state by area of India ?

Answer

Goa

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Q:

One light year is approximately equal to

A) 10^12 mts B) 10^16 mts
C) 10^11 mts D) 10^13 mts
 
Answer & Explanation Answer: B) 10^16 mts

Explanation:

Light year is the unit of to express astronomical distances, that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers.

 

Approximately, 1 light year = 10^16 mts.

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Filed Under: Physics
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Q:

Select the correct statement about the process of scientific inquiry.

A) The goal of scientific research is to prove the stated hypothesis. B) It is possible to test hypotheses, such as those involving historical events, without conducting experiments.
C) If the results of an experiment do not support the hypothesis that is tested, the experiment is badly designed. D) All of the above
 
Answer & Explanation Answer: B) It is possible to test hypotheses, such as those involving historical events, without conducting experiments.

Explanation:

The correct statement among the given options about the process of scientific inquiry is "It is possible to test hypotheses, such as those involving historical events, without conducting experiments."

 

Although it is not possible to carry out experiments to test hypotheses about evolutionary relationships between living groups or about the timing of the origin of major evolutionary innovations, such hypotheses can be evaluated by making predictions about the expected findings that would result from these hypotheses. Data can then be collected to test whether these predictions are correct.

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Filed Under: General Science
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Q:

How do you detect a sequence of "1101" arriving serially from a signal line?

Answer

A SIPO and AND gate circuit can detect this sequence.The output of SIPO is connected to a four input AND gate ,the third SIPO output should be connected through a NOT gate.When the 1101 sequence is loaded in to the SIPO the AND output goes HIGH otherwise keeps LOW.

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Subject: Hardware

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Q:

Be the embodiment or perfect example of

A) Signify B) Personify
C) Characterise D) Idol
 
Answer & Explanation Answer: B) Personify

Explanation:

One word substitution for Be the embodiment or perfect example of is Personify. Personify means represent or embody (a quality, concept, etc.) in a physical form.

 

Characterise: describe the distinctive nature or features of.

Idol: an image or representation of a god used as an object of worship.

Signify: be an indication of.

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Filed Under: English
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Q:

The famous song ‘Saare Jaha se Achha’ is composed by ___________

A) Ravindra Nath Tagore B) Bankim Chandra Chattopadhya
C) Mohammad Iqbal D) one of the above
 
Answer & Explanation Answer: C) Mohammad Iqbal

Explanation:
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Filed Under: Indian Culture

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