Question 1

Question 1Aashna has written following code :a = 5
b = '5'
c = "5"
d = 5.0(a) What are the data types of a, b, c, d ?(b) Are a, b, c, d storing exactly the same values ? Why/why not ?(c) What will be the output of following code based on values of a, b, c and d ?print a == bprint b == cprint a == d(d) Discuss the reasons behind the output of part (c).

Accepted Answer

(a) The data types are as follows:aintbStringcStringdfloat(b) No, a, b, c, and d are not storing exactly the same values. While the values of b and c look like integers (numerical 5), they are enclosed within quotes, making them strings. On the other hand, a is an integer number, and d is a floating-point number with a decimal point.So, although they all represent the number 5, they are stored as different data types.(c) The output of the following code will be :False
True
True
(d) The reasons behind the output of part c are as follows:1. print a == bThis comparison checks if the value of a is equal to the value of b. Even though the values of a and b are both 5, they are not of the same data type (int vs. str). Python strictly checks for both value and type equality in this case, so the comparison evaluates to False.2. print b == cThis comparison checks if the value of b is equal to the value of c. Since both b and c are strings with the same content ("5"), the comparison evaluates to True.3. print a == dThis comparison checks if the value of a is equal to the value of d. Although they have different data types (int vs. float), their numerical values are the same (both represent 5). Python performs type coercion in this case and considers them equal, so the comparison evaluates to True.

Question 2

Question 2Anant has written following expressions in Python 2.7 :a = - 4 % 1.5
b = - 4 // 1.5
c = 4.0 / 5
d = 4 / 5(a) Find out the values stored by a, b, c and d.(b) What are the datatypes of a, b, c and d ?(c) Why are the values of c and d not the same.

Accepted Answer

(a) The values stored in a, b, c, d are as follows:VariableValueReasona-0.5Remainder of -4 divided by 1.5 is -0.5b-3.0Floor division of -4 by 1.5 is -3.0 as floor division divides and truncates the fractional part from the result.c0.8Division of 4.0 by 5 is 0.8, which is a floating-point valued0Division of 4 by 5 is 0, and the fractional part is truncated(b) The data types of a, b, c and d are as follows:VariablesDatatypesafloatbfloatcfloatdint(c) The values of 'c' and 'd' are not the same because of the difference in the division operation performed in each case:'c' is the result of dividing two floating-point numbers, which preserves the decimal point and gives a floating-point result. 'd' is the result of dividing two integers, which truncates the fractional part and gives an integer result.

Question 3

Question 5What is the output of following code ?print 8 >= 8
8 >= 8FalseTrueError

Accepted Answer

TrueReason — a >= b compares a and b and returns true if a is greater than or equal to b, else returns false. Since 8 is equal to 8, the given expression results in 'true'.

Question 4

Question 7What will be the output of following code ?print(8 >= 8)
8 >= 8FalseTrueError

Accepted Answer

TrueReason — The given expression (8 >= 8) results in true as 8 is equal to 8. Thus, 'true' is printed on the output terminal.

Source: This question is from Python Revision, Computer Applications &mdash; Class 10, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Python Revision: Question, Output, Code, Print, False, True. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 10 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This QuestionRead the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Python RevisionQ1: Question 1 Aashna has written following code : a = 5 b = &#x27;5&#x27; c = "5" d = 5.0 (a) What are the data...
Q11: Question 11 What is an identifier ? What are the identifier forming rules of Python ?
Q12: Question 12 What are literals ? How many types of literals are available in Python ?
Q13: Question 13 How many types of integer literals are allowed in Python ? How are they written ?
Q14: Question 14 What kind of literals are these : 011, 0X2A, 17, 014, 0XBC1 ?
Practice more questions from Python Revision &mdash; Computer Applications, Class 10 CBSE

Question 5

Question 3What are literals in Python ? How many types of literals are allowed in Python ?

Accepted Answer

Literals are data items that have a fixed value. The different types of literals allowed in Python are:String literalsNumeric literalsBoolean literalsSpecial literal NoneLiteral collections

Question 6

Question 4What are operators ? What is their function ? Give examples of some unary and binary operators.

Accepted Answer

Operators are tokens that trigger some computation/action when applied to variables and other objects in an expression.Unary plus (+), Unary minus (-), Bitwise complement (~), Logical negation (not) are a few examples of unary operators.Examples of binary operators are Addition (+), Subtraction (-), Multiplication (*), Division (/).

Question 7

Question 6What are data types ? How are they important ?

Accepted Answer

Data types are used to identify the type of data a memory location can hold and the associated operations of handling it.The data that we deal with in our programs can be of many types like character, integer, real number, string, boolean, etc. hence programming languages including Python provide ways and facilities to handle all these different types of data through data types. The data types define the capabilities to handle a specific type of data such as memory space it allocates to hold a certain type of data and the range of values supported for a given data type, etc.

Question 8

Question 8Write a program to input a number n and print n, n2, n3.

Accepted Answer

Solutionn = int(input("Enter n: "))
n2, n3 = n ** 2, n ** 3
print("n =", n)
print("n^2 =", n2)
print("n^3 =", n3)OutputEnter n: 2
n = 2
n^2 = 4
n^3 = 8

Question 9

Question 9What is meant by token ? Name the tokens available in Python.

Accepted Answer

The smallest individual unit in a program is known as a Token. Python has following tokens:Keywords — Examples are import, for, in, while, etc.Identifiers — Examples are MyFile, DS, DATE9777, etc.Literals — Examples are "abc", 5, 28.5, etc.Operators — Examples are +, -, >, or, etc.Punctuators — ' " # () etc.

Question 10

Question 10What are keywords ? Can keywords be used as identifiers ?

Accepted Answer

Keywords are words having special meaning reserved by programming language.No, keywords cannot be used as identifiers.

Source: This question is from Python Revision, Computer Applications &mdash; Class 10, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Python Revision: Question, Keywords, Identifiers, Python Revision, Computer Applications. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 10 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This QuestionRead the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Python RevisionQ1: Question 1 Aashna has written following code : a = 5 b = &#x27;5&#x27; c = "5" d = 5.0 (a) What are the data...
Q11: Question 11 What is an identifier ? What are the identifier forming rules of Python ?
Q12: Question 12 What are literals ? How many types of literals are available in Python ?
Q13: Question 13 How many types of integer literals are allowed in Python ? How are they written ?
Q14: Question 14 What kind of literals are these : 011, 0X2A, 17, 014, 0XBC1 ?
Practice more questions from Python Revision &mdash; Computer Applications, Class 10 CBSE

Question 11

Question 11What is an identifier ? What are the identifier forming rules of Python ?

Accepted Answer

Identifiers are fundamental building blocks of a program and are used as the general terminology for the names given to different parts of the program viz variables, objects, classes, functions, lists, dictionaries etc. For example, Myfile, _DS, _name_01, H34CAP etc.The identifier forming rules of Python are:An identifier starts with a letter A to Z or a to z or an underscore (_) followed by zero or more letters, underscores, and digits (0 to 9).Python does not allow punctuation characters such as @, $, and % within identifiers.Reserved words (keywords) must not be used as identifiers.

Question 12

Question 12What are literals ? How many types of literals are available in Python ?

Accepted Answer

Literals are data items that have a fixed value. The different types of literals allowed in Python are:String literalsNumeric literalsBoolean literalsSpecial literal NoneLiteral collections

Question 13

Question 13How many types of integer literals are allowed in Python ? How are they written ?

Accepted Answer

The types of integer literals allowed in Python are as follows:Decimal form — Integers written in decimal form do not begin with a zero and contain only 0 to 9 digits.Octal form — Integers written in octal form begin with a 0 and contain only 0 to 7 digits.Hexadecimal form — Integers written in hexadecimal form begin with a 0x and contain only 0 to 9 digits and A to F or a to f letters.

Question 14

Question 14What kind of literals are these : 011, 0X2A, 17, 014, 0XBC1 ?

Accepted Answer

011Octal Literal0X2AHexadecimal Literal17Decimal Literal014Octal Literal0XBC1Hexadecimal Literal

Question 15

Question 15How are nongraphic characters represented in Python ?

Accepted Answer

Python allows us to have certain non-graphic characters in String values. These non-graphic characters can be represented by using escape sequences — represented by a backslash ( \ ) followed by one or more characters.Some examples of non-graphic characters and their escape sequences are as follows:Escape SequenceNon-Graphic Character\aASCII Bell (BEL)
New line character	Horizontal tab

Question 16

Question 16What are string-literals in Python ? How many ways, can you create String literals in Python ?

Accepted Answer

We can form string literals by enclosing text in both forms of quotes — single quotes or double quotes. For example, 'Astha', "Rizwan", 'Hello World', "112FB0291", etc.Python allows us to have two string types :Single line Strings — These strings terminate in single line. For example, "I am a single line string" , "Hello World!"Multiline Strings — These strings spread across multiple lines. These strings are created in following two ways :by adding a backslash at the end of physical line, for example,multiline_string_variable = "Hello \World !"by enclosing the multiple lines of string in triple quotes, for example,Str1 = ''' HelloWorld.There I Come ! ! !Cheers.'''

Question 17

Question 17What is meant by a floating-point literal in Python ? How many ways can a floating literal be represented into ?

Accepted Answer

Floating point literals represent real numbers and are written with a decimal point dividing the integer and fractional parts.Floating literals are represented in Python in two forms —Fractional Form — 2.0, 17.5, -13.0, -0.00625Exponent form — 152E05, 1.52E07, 0.152E08, -0.172E-3

Question 18

Question 18What are the two Boolean literals in Python ?

Accepted Answer

The two Boolean literals in Python are true and false.

Source: This question is from Python Revision, Computer Applications &mdash; Class 10, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Python Revision: Question, Boolean, Literals, Python, Python Revision, Computer Applications. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 10 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This QuestionRead the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Python RevisionQ1: Question 1 Aashna has written following code : a = 5 b = &#x27;5&#x27; c = "5" d = 5.0 (a) What are the data...
Q11: Question 11 What is an identifier ? What are the identifier forming rules of Python ?
Q12: Question 12 What are literals ? How many types of literals are available in Python ?
Q13: Question 13 How many types of integer literals are allowed in Python ? How are they written ?
Q14: Question 14 What kind of literals are these : 011, 0X2A, 17, 014, 0XBC1 ?
Practice more questions from Python Revision &mdash; Computer Applications, Class 10 CBSE

Question 19

Question 19What kind of program elements are these: 'a', 4.38925, "a", main( ) ?

Accepted Answer

'a'String Literal4.38925Floating point Literal"a"String Literalmain( )Function

Python Revision

Application Oriented Questions

Objective Type Questions

Theoretical Questions