Q1: In the Python shell, do the following… A1: Here is a simple Python script that accomplishes this: # (i) Define a variable named states that is an empty list. states = [] # (ii) Add ‘Delhi’ to the list. states.append(‘Delhi’) # (iii) Now add ‘Punjab’ to the end of the list. states.append(‘Punjab’) # (iv) …
Q1: What’s a[1:1] if a is a string of at least two characters? And what if string is shorter? A1: In Python, when you use slicing, the start index is inclusive and the end index is exclusive. So, if `a` is a string of at least two characters, `a[1:1]` will be an empty string because …
Q1: What do you understand by mutability? What does “in place” task mean? A1: Mutability refers to the capability of an object (like a list or dictionary in Python) to be changed after it is created. If an object can be changed, then it is called mutable. Conversely, if an object cannot be changed, it …
Q1: What is the internal structure of Python strings? A1: Python strings are sequences of Unicode characters, i.e., an ordered collection of characters. This means they maintain a left-to-right positional ordering among the characters. Each character in a string has a unique index, with the first character having an index of 0. Python strings are …
Q1: How are floating constants represented in Python? Give examples to support your answer. A1: Floating constants, or floating-point numbers, are represented in Python by including a decimal point in the number. Python allows for a compact representation of floating-point numbers when the numbers are too large or too small. This is done using scientific …
Q1: What is an expression and a statement? A1: An expression in Python is a piece of code that produces a value. Expressions consist of values (like literals or variables) combined together with operators. For example, `2 + 3 * 4` is an expression. A statement, on the other hand, is a piece of code …
Q1: What are tokens in Python? How many types of tokens are allowed in Python? A1: In Python, tokens are the basic components of the source code. They are the smallest unit of code that Python interpreter can understand. Tokens can be classified into the following types: Keywords, Identifiers, Literals, Operators, Punctuators. Q2: How are …
Math Problems Q1. There are 24 peaches, 36 apricots and 60 bananas and they have to be arranged in several rows in such a way that every row contains the same number of fruits of only one type. What is the minimum number of rows required for this to happen? Q2. Find the side …
Q Study the chemical structure of the glucose molecule and answer the questions.(i) Make a key to show which colours represent which elements in this structure.(ii) Count and mention the number of atoms of each element in the structure.(iii) Based on the above two answers, write the molecular formula of glucose. Ans i) Black for …
Addressing the Social Problem of Aging through the Application of Science Introduction: Do you know why we need to help our grandparents and other elderly people? It’s because as people get older, their bodies and minds can face more challenges. They might get tired easily, forget things, or feel lonely. But guess what? Science …
