20 Python Programs for CBSE Class 11th Practical File

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Welcome to this blog post where we explore 20 essential Python programs for CBSE Class 11 practicals. These programs are designed to help students grasp the fundamentals of Python programming, including decision-making, looping, lists, strings, functions, and more.

FAQs

1. Hello World Program

This is the simplest program to get started with Python.

# Program to print Hello World
print("Hello, World!")

2. Simple Calculator

A calculator to perform basic arithmetic operations.

# Program to create a simple calculator
num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))
operator = input("Enter operation (+, -, *, /): ")

if operator == '+':
    print(f"Result: {num1 + num2}")
elif operator == '-':
    print(f"Result: {num1 - num2}")
elif operator == '*':
    print(f"Result: {num1 * num2}")
elif operator == '/':
    print(f"Result: {num1 / num2}")
else:
    print("Invalid operator")

3. Find the Largest of Three Numbers

This program helps in finding the largest number among three given numbers.

# Program to find the largest of three numbers
a = float(input("Enter first number: "))
b = float(input("Enter second number: "))
c = float(input("Enter third number: "))

if a >= b and a >= c:
    print(f"Largest number is: {a}")
elif b >= a and b >= c:
    print(f"Largest number is: {b}")
else:
    print(f"Largest number is: {c}")

4. Check Even or Odd

A basic program to check if a number is even or odd.

# Program to check if a number is even or odd
num = int(input("Enter a number: "))

if num % 2 == 0:
    print(f"{num} is an even number")
else:
    print(f"{num} is an odd number")

5. Factorial of a Number

This program calculates the factorial of a given number.

# Program to find the factorial of a number
num = int(input("Enter a number: "))
factorial = 1

for i in range(1, num + 1):
    factorial *= i

print(f"Factorial of {num} is {factorial}")

6. Sum of Natural Numbers

Find the sum of the first ‘n’ natural numbers.

# Program to find the sum of first n natural numbers
n = int(input("Enter a number: "))
sum_n = n * (n + 1) // 2

print(f"Sum of first {n} natural numbers is {sum_n}")

7. Fibonacci Series

This program generates the Fibonacci series up to ‘n’ terms.

# Program to generate Fibonacci series up to n terms
n = int(input("Enter the number of terms: "))
a, b = 0, 1

for _ in range(n):
    print(a, end=" ")
    a, b = b, a + b

8. Armstrong Number

Check whether a given number is an Armstrong number.

# Program to check if a number is an Armstrong number
num = int(input("Enter a number: "))
sum_of_cubes = sum([int(digit)**3 for digit in str(num)])

if sum_of_cubes == num:
    print(f"{num} is an Armstrong number")
else:
    print(f"{num} is not an Armstrong number")

9. Palindrome String

Check whether a given string is a palindrome.

# Program to check if a string is a palindrome
string = input("Enter a string: ")

if string == string[::-1]:
    print(f"{string} is a palindrome")
else:
    print(f"{string} is not a palindrome")

10. Simple Interest Calculator

Calculate the simple interest on a given principal amount, rate, and time.

# Program to calculate simple interest
P = float(input("Enter the principal amount: "))
R = float(input("Enter the rate of interest: "))
T = float(input("Enter the time (in years): "))

SI = (P * R * T) / 100
print(f"Simple Interest is: {SI}")

11. Reverse a Number

This program reverses a given number.

# Program to reverse a number
num = int(input("Enter a number: "))
reversed_num = int(str(num)[::-1])

print(f"Reversed number is: {reversed_num}")

12. Sum of Digits of a Number

Find the sum of digits of a given number.

# Program to find the sum of digits of a number
num = int(input("Enter a number: "))
sum_of_digits = sum([int(digit) for digit in str(num)])

print(f"Sum of digits is: {sum_of_digits}")

13. Swapping Two Numbers

Swap two numbers without using a third variable.

# Program to swap two numbers without using a third variable
a = int(input("Enter first number: "))
b = int(input("Enter second number: "))

a, b = b, a

print(f"After swapping, first number: {a}, second number: {b}")

14. Count Vowels in a String

Count the number of vowels in a string.

# Program to count the number of vowels in a string
string = input("Enter a string: ")
vowels = 'aeiouAEIOU'
count = sum(1 for char in string if char in vowels)

print(f"Number of vowels in the string: {count}")

15. Check for Prime Number

This program checks whether a number is prime or not.

# Program to check if a number is prime
num = int(input("Enter a number: "))

if num > 1:
    for i in range(2, num):
        if num % i == 0:
            print(f"{num} is not a prime number")
            break
    else:
        print(f"{num} is a prime number")
else:
    print(f"{num} is not a prime number")

16. GCD of Two Numbers

Find the greatest common divisor (GCD) of two numbers.

# Program to find the GCD of two numbers
def gcd(a, b):
    while b:
        a, b = b, a % b
    return a

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))

print(f"GCD of {num1} and {num2} is {gcd(num1, num2)}")

17. List Operations (Append, Remove, Sort)

Perform basic list operations like append, remove, and sort.

# Program to perform list operations
numbers = [10, 20, 30, 40]

# Append
numbers.append(50)
print("List after appending:", numbers)

# Remove
numbers.remove(20)
print("List after removing:", numbers)

# Sort
numbers.sort()
print("List after sorting:", numbers)

18. Matrix Addition

Add two 2×2 matrices.

# Program to add two 2x2 matrices
matrix1 = [[1, 2], [3, 4]]
matrix2 = [[5, 6], [7, 8]]

result = [[matrix1[i][j] + matrix2[i][j] for j in range(2)] for i in range(2)]

print("Resultant Matrix:")
for row in result:
    print(row)

19. Linear Search

Implement linear search to find an element in a list.

# Program to implement linear search
numbers = [10, 20, 30, 40, 50]
search_element = int(input("Enter element to search: "))

for index, value in enumerate(numbers):
    if value == search_element:
        print(f"Element found at index {index}")
        break
else:
    print("Element not found")

20. Bubble Sort

Sort a list using the bubble sort algorithm.

# Program to implement bubble sort
numbers = [64, 34, 25, 12, 22, 11, 90]

for i in range(len(numbers)):
    for j in range(0, len(numbers) - i - 1):
        if numbers[j] > numbers[j + 1]:
            numbers[j], numbers[j + 1] = numbers[j + 1], numbers[j]

print("Sorted list is:", numbers)

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These Python programs are perfect for your CBSE Class 11 Practical File and cover fundamental topics in Python programming. Working through these examples will not only enhance your understanding of core concepts but also prepare you well for exams and real-world coding scenarios. Happy coding!