Questions

Q:

Why does the sea appear blue in colour?

A) Reflection of the sun light from water surface B) Interference of the sun light from water surface
C) Scattering of the sunlight by water molecules D) refraction of the sun light
 
Answer & Explanation Answer: C) Scattering of the sunlight by water molecules

Explanation:

Sea appears blue in colour due to the scattering of the rays when they hit water molecules

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Filed Under: Physics

1 3506
Q:

Who among the following was the advisor to the Drafting Committee of Constiuent Assembly

A) B.Shiva Rao B) B.R.Ambedkar
C) Sachchidananda Sinha D) B.N.Rau
 
Answer & Explanation Answer: D) B.N.Rau

Explanation:
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Filed Under: Indian Politics

5 3506
Q:

Which state to be 1st state to legalise mask-wearing?

 

A) Goa B) Telangana
C) Rajasthan D) Delhi
 
Answer & Explanation Answer: C) Rajasthan

Explanation:

Rajasthan to become first state to legalise wearing masks in public places. State to make masks wearing mandatory to prevent the spread of Covid19.

 

 

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Filed Under: General Awareness
Exam Prep: Bank Exams

2 3505
Q:

The grouping of blood is based on substances called 

A) antibodies B) antigens
C) antitoxin D) enzymes
 
Answer & Explanation Answer: B) antigens

Explanation:

The red blood corpuscles  or erythrocytes usually carry antigens and there are two types of antigens. The A group persons have antigen A in their red corpuscles and the B group have antigen B in their red corpuscles. The AB group person have both antigen A and antigen B in their erythrocytes. The 'O' group persons have no antigens in their red corpuscles.

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Filed Under: Biology

7 3504
Q:

How would you check whether the contents of two structure variables are same or not?

Answer

struct emp


{


     char n[20];


      int age;


};


main()


{


    struct emp e1 = {"Dravid", 23};


   struct emp e2;


   scanf ("%s %d",e2.n, & e2.age);


   if( structcmp (e1,e2) ==0)


        printf ("The structures are equal");


   else


         printf ("The structures are unequal");


}


structcmp ( struct emp x, struct emp y)


{


     if (strcmp (x.n,y.n) ==0)


           if (x.age == y.age)


            return (0);


            return (1);


}


In short, if you nee to compare two structures, you'll have to write your own function to do so which carries out the comparison field by field.

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Subject: Programming

0 3504
Q:

The Kinetic energy of gas molecules

A) is unaffected by temperature variations B) decreases with increase of temperature
C) increases with decrease of temperature D) increases with increase of temperature
 
Answer & Explanation Answer: D) increases with increase of temperature

Explanation:

Kinetic Energy K.E = 12mV2  or 

K.E V2, Where 'm' is the mass and 'v' is the velocity of molecules.

 

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

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Filed Under: Chemistry
Exam Prep: AIEEE

18 3503
Q:

Which of the following cities is the first mono rail inaugurated?

A) Delhi B) Mumbai
C) Kolkata D) Bangalore
 
Answer & Explanation Answer: B) Mumbai

Explanation:
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Filed Under: General Awareness

4 3503
Q:

Plants are green because they

A) Refract green light B) Absorbs green light
C) Reflects green light D) Do not absorb ultra violet light
 
Answer & Explanation Answer: C) Reflects green light

Explanation:
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Filed Under: Biology

6 3501