Explanation

The reciprocal of frequency is its time period.

Explanation

If A = {1,2,3,4,6} B= {2,4,5,7} then B-A =?

{2,4,5,7} -  {1,2,3,4,6}

 B - A means B contains the element which is not present in A. 

{3,5,7}

Explanation

Explanation

A soldier serves in the Army and a Sailor serves in the Navy.

Reason – a soldier is a person who is engaged in military service  in the army,

similarly, a sailor  is a person serving in the navy

Explanation

Please do no interfere in my personal affairs. 

Explanation

 Acre is to kanel as

the square is to marls

Explanation

Alt + E is a shortcut created on the Keyboard

and is used to turn up the Edit file menu if the programs or applications support the file menu.

Explanation

 humans have five senses:

taste,

smell,

vision,

hearing,

touch.

Explanation

Unlike poles of different magnets attract each other; like poles repel each other.

 property of a magnet:

Like poles of the magnets i.e. north-north and south-south repel each other 

unlike poles of the magnets i.e. north-south and south-north attract each other.

Explanation

 Cap is to the head as a shoe is to the feet.

Reason – a cap is worn on the head as a shoe is worn on the feet.