HSC Science कक्षा ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions

King Vikramaditya has two magic swords. With one, he can cut off 19 heads of a dragon, but after that, the dragon grows 13 heads. With the other sword, he can cut off 7 heads, but 22 new heads grow. If all heads are cut off, the dragon dies. If the dragon has originally 1000 heads, can it ever die?

Assume an 8 × 8 chessboard with the usual coloring. "Recoloring" operation changes the color of all squares of a row or a column. You can recolor repeatedly. The goal is to attain just one black square. Show that you cannot achieve the goal.

What is the difference between isupper() and toupper() functions?

What are called members?

Differentiate structure and class though both are user-defined data types.

What is the difference between the class and object in terms of oop?

Why it is considered good practice to define a constructor though a compiler can automatically generate a constructor?

The variables declared inside the class are known as ______.

Which of the following statements about member functions are True or False?

i) A member function can call another member function directly by using the dot operator.

ii) Member function can access the private data of the class.

A member function can call another member function directly, without using the dot operator called as ______

The member function defined within the class behaves like ______ functions.

Which of the following access specifier protects data from inadvertent modifications?

Rewrite the following program after removing the syntax errors if any and underline the errors:

#include<iostream>
$include<stdio>
class mystud
{ int studid =1001;
char name[20];
public
mystud( ) { }
void register ( )
{cin>>stdid; gets(name); }
void display ( )
{cout<<studid<<”: “<<name<<endl;}
}
int main( ) { mystud MS; register.MS( ); MS.display( ); }
int main( )
{ mystud MS;
register.MS( );
MS.display( );
}

Define a class RESORT with the following description in C++ :

Private members:
Rno // Data member to storeroom number
Name //Data member to store user name
Charges //Data member to store per day charge Days //Data member to store the number of days Compute( )/*A function to calculate a total amount as Days * Charges and if the total amount exceeds 11000 then the total amount is 1.02 * Days *Charges */
Public member:
GetInfo( ) /* Function to Read the information like name , room no, charges and days*/
DispInfo( )/* Function to display all entered details and total amount calculated using COMPUTE function*/

Write the output of the following

#include<iostream>
using namespace std;
class student
{
  int rno, marks;
  public: student(int r, int m)
  {
    cout << "Constructor " << endl;
    rno = r;
    marks = m;
  }
  void printdet()
  {
    marks = marks + 30;
    cout << "Name: Bharathi" << endl;
    cout << "Roll no : "<<rno << "\n";
    cout << "Marks : "<<marks << endl;
  }
};
int main()
{
  student s(14,70);
  s.printdet();
  cout << "Back to Main";
  return 0;
}

Which of the following deals with procedures, practices, and values?

Commercial programs made available to the public illegally are known as ______.

Which one of the following is self-repeating and does not require a computer program to attach itself?

Which one of the following tracks a does user visit a website?

Which of the following is not a malicious program on computer systems?