Question 3 - Teachoo Sample Paper - Computer Science Class 12 - Solutions to CBSE Sample Paper - Computer Science Class 12

Which of the following statements is correct about explicit type conversion in Python? 

1. It is done automatically by the interpreter 

2. It is done by using built-in functions such as int(), float(), str(), etc. 

3. It is done by using the type() function 

4. It is not possible in Python 

Answer:

Answer by student

b. It is done by using built-in functions such as int(), float(), str(), etc.

Detailed answer by teachoo

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Let’s look at each option and see why they are correct or incorrect:

• a. It is done automatically by the interpreter: This is incorrect because this describes implicit type conversion, not explicit type conversion. Implicit type conversion is when the interpreter converts one data type to another without any user involvement, based on the context of the expression.
• b. It is done by using built-in functions such as int(), float(), str(), etc.: This is correct because this describes explicit type conversion, also known as type casting. Explicit type conversion is when the user manually changes the data type of an object to a required data type, using built-in functions like int(), float(), str(), etc.
• c. It is done by using the type() function: This is incorrect because the type() function does not change the data type of an object, it only returns the data type of an object as a string.
• d. It is not possible in Python: This is incorrect because explicit type conversion is possible and often necessary in Python, especially when dealing with different types of input and output.

So, the correct answer is b. It is done by using built-in functions such as int(), float(), str(), etc.

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