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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

Basics of Sets 01

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Question 1 of 10

1. Question

Which of the following is correct about sets?

A set is a collection of objects.

A set is a well-defined collection of objects.

Set always have finite number of elements

Set always have infinite number of elements

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Question 2 of 10

2. Question

Which of the following is incorrect about void sets?

does not contain any element

it is also known as null set

It is also known as empty set and denoted as { }.

It is represented by \(\phi) and also known as non-empty set

Correct

Incorrect
Question 3 of 10

3. Question

Which of the following is incorrect ?

empty set is a finite set

\(N \subset W\) where N is a set of natural number and W is a set of whole number

\(W \subset Q\) where W is a set of whole number and Q is a set of rational numbers

\(Z \subset T\) where Z is a set of integers and T is a set of irrational numbers

Correct

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Question 4 of 10

4. Question

A will be subset of B, if

if every element of A is also an element of B

if every element of B is also an element of A

if some elements of A are also elements of B

A will always be a subset of B

Correct

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Question 5 of 10

5. Question

What do you mean by \(N \subset W\)

W is a subset of N

N is a superset of W

N is a subset of W

W is a superset of N

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Question 6 of 10

6. Question

What is/are true about two equal sets A and B?

every element of A is also an element of B and every element of B is also an element of A

\(a \in A \ \Rightarrow a \in B\) and \(a \in B \ \Rightarrow a \in A\)

\( A \in B\) and \( B \in A\)

\( A \subset B\) and \( B \subset A\)

Correct

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Question 7 of 10

7. Question

Interval for the set of real numbers \(\{ x: a < x < b \}\) is shown as

open interval \([a,b)\)

closed interval \([a,b]\)

open interval \((a,b)\)

open interval \([a,b]\)

Correct

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Question 8 of 10

8. Question

Which of the intervals are closed at one end and open at the other

\(\{ x: a \le x \le b \}\)

\(\{ x: a \le x < b \}\)

\(\{ x: a < x \le b \}\)

\(\{ x: a < x < b \}\)

Correct

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Question 9 of 10

9. Question

The collection of all subsets of a set A is called the ______ set of A. Hint: it is denoted by \(P(A)\).

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Question 10 of 10

10. Question

If the number of elements in A = 4, then the number of elements in \(P(A)\) =

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Passion JEE

"Stronger the roots, Brighter the future"

Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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