Teachoo Quiz

Maths Relations and Functions Class 11 MCQ and Assertion Questions

Short Quiz · Class 11 · Maths · CBSE

Preparing for CBSE

Chapter 2 Class 11 Relations and Functions | 5 questions | about 4 minutes

Practise Relations and Functions Class 11 with Teachoo's Short Quiz (Class 11 · Maths · CBSE). Practise these questions in a free interactive quiz with answer feedback.

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Question 1 of 5
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Question 1 of 5
Assertion (A): The relation \(R = \{(1, 2), (1, 3), (2, 4)\}\) is a function.

Reason (R): A function is a special type of relation where every element of the domain has one and only one image.
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Question 2 of 5
Assertion (A): The relation \(R = \{(x, y) : y = x^2, x \in \mathbb{R}\}\) represents a function from \(\mathbb{R}\) to \(\mathbb{R}\).

Reason (R): For every real number \(x\), there is a unique real number representing its square.
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Question 3 of 5
Assertion (A): A monitoring system has 3 sensors and 2 alert levels. The number of possible relations from the sensor set to the alert-level set is \(64\).
Reason (R): A relation is any subset of the Cartesian product, which here contains \(3\times2=6\) ordered pairs.
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Question 4 of 5
Assertion (A): For \(A=\{1,2,3,4,5,6\}\) and \(R=\{(x,y):y=x+1,\ x,y\in A\}\), the domain of \(R\) is \(\{1,2,3,4,5\}\).
Reason (R): The codomain of \(R\) is \(\{2,3,4,5,6\}\).
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Question 5 of 5
Assertion (A): The range of the constant function \(f(x) = 5\) for all real \(x\) is the singleton set \(\{5\}\).

Reason (R): A constant function \(f(x) = c\) maps all elements of its domain to the same single constant value \(c\).
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