Questions

Q:

Write a program for matrix multiplication in c

Answer

#include <stdio.h>


int main() {


  int a[5][5], b[5][5], c[5][5], i, j, k, sum = 0, m, n, o, p;


  printf( "\nEnter the row and column of first matrix" );


  scanf( "%d %d", &m, &n );


  printf( "\nEnter the row and column of second matrix" );


  scanf( "%d %d", &o, &p );


  if(n!=o) {


      printf( "Matrix mutiplication is not possible" );


      printf( "\nColumn of first matrix must be same as row of second matrix" );


  }


  else {


      printf( "\nEnter the First matrix" );


      for( i=0; i<m; i++ )


      for( j=0; j<n; j++ )


           scanf( "%d", &a[i][j] );


      printf( "\nEnter the Second matrix" );


      for( i=0; i<o; i++ )


      for( j=0; j<p; j++ )


           scanf( "%d", &b[i][j] );


      printf( "\nThe First matrix is\n" );


      for( i=0; i<m; i++ ) {


      printf("\n");


      for( j=0; j<n; j++ ) {


           printf( "%d\t", a[i][j] );


      }


      }


      printf( "\nThe Second matrix is\n" );


      for( i=0; i<o; i++ ) {


      printf("\n");


      for( j=0; j<p; j++ ) {


           printf( "%d\t", b[i][j] );


      }       


      }


      for( i=0; i<m; i++ )


      for( j=0; j<p;j++ )


           c[i][j] = 0;


      for( i=0; i<m; i++ ) { //row of first matrix


      for( j=0; j<p; j++ )  {  //column of second matrix


           sum = 0;


           for( k=0; k<n; k++ )


               sum = sum + a[i][k]*b[k][j];


           c[i][j] = sum;


      }


      }


  }


  printf( "\nThe multiplication of two matrix is\n" );


  for( i=0; i<m; i++ ) {


      printf("\n");


      for( j=0; j<p; j++ ) {


           printf( "%d\t", c[i][j] );


      }


  }


  return 0;


}

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Q:

What has feet and legs and nothing else?

Answer

Stocking is long sock that women wore which has legs and feet and nothing else.

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Q:

Instrument for measuring light intensity is called

A) Lucimeter B) Cryometer
C) Cyanometer D) Barometer
 
Answer & Explanation Answer: A) Lucimeter

Explanation:
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Q:

Gametes are produced by the process of

A) Mitosis B) Meiosis
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Meiosis

Explanation:

A gametes are haploid cells as they have only one set of chromosomes. Meiosis is a process of cellular reproduction in which both male and female gametes are formed. During meiosis, the DNA is only replicated or copied one time.

Gametes_are_produced_by_the_process_of1560944987.png image

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Q:

Which one of the following is a plant hormone?

A) Cytokinin B) Oestrogen
C) Thyroxin D) Insulin
 
Answer & Explanation Answer: A) Cytokinin

Explanation:

Cytokinins is a Plant hormone which helps in cell division and leads to Growth & formation of shoots, roots & bud.

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Q:

At which stage in its life cycle does the silkworm yield the fiber of commercial use

A) Larva B) Egg
C) Pupa D) Imago
 
Answer & Explanation Answer: C) Pupa

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement". 
 
she thought she (have rediscovered) her real self after a long time

A) had rediscovered B) Had rediscover
C) had rediscovering D) no improvement
 
Answer & Explanation Answer: A) had rediscovered

Explanation:
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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Crude mineral oil comes out of the earth as a thick brown or black liquid with a strong smell. It is a complex mixture of many different substances, each with its own individual qualities. Most of them are combinations of hydrogen and carbon in varying proportions. Such hydrocarbons are also found in other forms such as bitumen, asphalt and natural gas. Mineral oil originates from the carcasses of tiny animals and from plants that live in the sea. Over million of years, these dead creatures form large deposits under sea­bed and ocean currents cover them with a blanket of sand and silt. As this material hardens, it becomes sedimentary rock and effectively shuts out the oxygen, thus preventing the complete decomposition of the marine deposits underneath. The layers of sedimentary rocks become thicker, and heavier. Their pressure produces heat, which transforms the tiny carcasses into crude oil in a process that is still going on today.


The time taken for the marine deposits to harden into rocks is

A) a few centuries B) millions of years
C) a few decades D) thousands of years
 
Answer & Explanation Answer: B) millions of years

Explanation:
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