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Q:

Change in focal length of eye lens is caused by

A) ciliary muscles B) iris
C) pupil D) retina
 
Answer & Explanation Answer: A) ciliary muscles

Explanation:
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Filed Under: Physics
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Q:

The production possibilities curve illustrates the basic principle that

A) if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced. B) the production of more of any one good will in time require smaller and smaller sacrifices of other goods.
C) an economy will automatically obtain full employment of its resources. D) an economy's capacity to produce increases in proportion to its population size.
 
Answer & Explanation Answer: A) if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced.

Explanation:

A graph that describes the maximum amount of one good that can be produced for every possible level of production of the other good is nothing but a production possibilities curve.

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Filed Under: Indian Economy
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Q:

The principle of dominance states that

A) Some alleles are dominant, while others are recessive B) All alleles are recessive
C) All alleles are dominant D) Alleles are neither dominant nor recessive
 
Answer & Explanation Answer: A) Some alleles are dominant, while others are recessive

Explanation:

The principle of dominance states that some alleles are dominant, while others are recessive.

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Filed Under: Biology
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Q:

What is the precise time of earth rotation on axis?

Answer

23 hrs, 56 minutes and 4.9 seconds

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Subject: World Geography

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Q:

Which microscope is often used to view metal surfaces?

A) Optical microscopes B) Scanning tunneling microscopes
C) Electron microscopes D) None of the above
 
Answer & Explanation Answer: B) Scanning tunneling microscopes

Explanation:

Microscopes are of three types. They are :

 

1) Optical microscopes

 

2) Electron microscopes

 

3) Scanning tunneling microscopes

 

 Which_microscope_is_often_used_to_view_metal_surfaces1538720175.png image

 

Scanning tunneling microscopes are the microscopes that are used to view metal surfaces.

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Filed Under: Physics
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Q:

Along the coasts salinity is 

A) lowered B) increased
C) stable D) unaffected
 
Answer & Explanation Answer: A) lowered

Explanation:

Rainfall and addition of fresh water from rivers reduce salinity neat the coasts.

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Filed Under: World Geography

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Q:

What is the currency of Japan?

A) yen B) dirham
C) yuan D) None of the above
 
Answer & Explanation Answer: A) yen

Explanation:

The currency of Japan is Japanese yen.

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Filed Under: World Geography
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Q:

Point out the error, if any, in the following program.

main()

{

    int ( *p )() = fun;

    ( *P ) ();

}

fun ()

{

    Printf ( "\nLoud and clear" );

} 

Answer

Here we are initalising the function pointer p to the address of the function fun(). But during this initialisation the function has not been defined. Hence an error.


To eliminate this error add the prototype of the fun() before declaration of p, as shown below:


extern int fun();    or simply  int fun();

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Subject: Programming

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