Questions

Q:

A periscope works by the principle of

A) Total internal reflection B) Refraction
C) Diffraction D) Reflection & Refraction
 
Answer & Explanation Answer: A) Total internal reflection

Explanation:

A periscope is an optical instrument that uses a system of prisms, lenses, or mirrors to reflect images through a tube.

 

 per11526634345.jpg image

 

Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer’s eye.

 

Hence, A periscope works by the principle of Total internal reflection.

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Filed Under: Physics
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

The most reactive of the following metals is

 

A) Al B) Ca
C) Ni D) Pb
 
Answer & Explanation Answer: B) Ca

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

What is the output of this C code?

        #include <stdio.h>
        void main()
        {
            int x = 97;
            char y = x;
            printf("%cn", y);
        }

A) a B) 97
C) Run time error D) None
 
Answer & Explanation Answer: A) a

Explanation:
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Filed Under: Programming

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Q:

By default, a real number is treated as a

A) Integer B) Float
C) Double D) Long double
 
Answer & Explanation Answer: B) Float

Explanation:

By default, a real number is treated as a float variable.

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Filed Under: Computer
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Q:

Who said, " I therefore, want freedom immediately, this very night, before dawn, if it can be had

A) Mahatma Gandhi B) Edwina Mounbatten
C) Jawaharlal Nehru D) Ms. Taslima Nasreen
 
Answer & Explanation Answer: A) Mahatma Gandhi

Explanation:
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Filed Under: Books and Authors

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Q:

In MS-Word, for what does ruler help?

A) to set indents B) to change page margins
C) to set tabs D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

In_MS-Word,_for_what_does_ruler_help1554294391.jpg image 

 

In MS-Word, the Ruler function helps align the text, graphic, tables or other elements in your document.

 

In_MS-Word,_for_what_does_ruler_help1558590348.png image 

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Q:

Logical puzzle

Miss Anne has eleven kids in her class. She has a bowl containing eleven apples. Now Miss Anne want to divide the eleven apples to the kids, in such a way that a apple should remain in her bowl. How can Miss Anne do it?

Answer

Ten kids will get each one apple. The eleventh kid will get the apple with the bowl.

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Subject: Logic Puzzles

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Q:

Tripping is associates with

 

A) Snooker B) Volleyball
C) Football D) Cricket
 
Answer & Explanation Answer: C) Football

Explanation:
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Filed Under: Sports
Exam Prep: Bank Exams

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