num1 = [10, 20] num2 = [30] num1.append(num2) print(num1)

Code - 

num1 = [10, 20]

num2 = [30]

num1.append(num2)

print(num1)

Solution and Explanation :

The above code appends the list num2 as a single element to the list num1. So, num1 becomes a nested list. Here's the breakdown of the code:

num1 = [10, 20]

num2 = [30]

num1.append(num2)

print(num1)

num1 is initially [10, 20].

num2 is [30].

num1.append(num2) appends num2 as a single element to num1, resulting in num1 becoming [10, 20, [30]].

print(num1) prints the updated num1.

The output of the code will be: [10, 20, [30]]