Complex Numbers MCQS With Solution | Solve Complex Numbers MCQS

Complex Numbers MCQS With Solution | Solve Complex Numbers MCQS

Bold Options are rights answers of the following complex numbers Mcqs.

Also Read 400+ Mcqs Of Physics

1. If z is any complex number, then z − z̅ equals:

A. 2 Im(z) 

B. -2 Im(z) 

C. 2 Im(z)i 

D. -2 Im(z)i 

2. Complex numbers with 0 as real part are called: 

A. imaginary numbers 

B. pure non real numbers 

C. pure imaginary numbers 

D. pure complex numbers 

3. The argument of which of the following number is not defined? 

A. 0 

B. 1 

C. 1/0 

D. i 

4. If θ is the principal argument Arg(z) of a complex number z, then: 

A. 0 ≤ θ ≤ 2π 

B. −π ≤ θ ≤ π 

C. −π ≤ θ < π 

D. −π < θ ≤ π 

5. For k ∈ Z, the relationship between arg(z) and Arg(z) is: 

A. arg(z)= Arg(z)+2kπ 

B. Arg(z)= arg(z)+2kπ 

C. arg(z)= Arg(z)−2kπ 

D. All of these 

6. Which of the following is unique? 

A. Arg(z) 

B. arg(z) 

C. Both A and B 

D. None of these 

7. We can write r(cos θ + isin θ) as: 

A. rsicθ 

B. rcsiθ 

C. rcisθ 

D. r cos θ 

8. The value of arg(5) is: 

A. 0◦ 

B. 90◦ 

C. 180◦ 

D. 270◦

9. The value of arg(−5) is: 

A. 0◦ 

B. 90◦ 

C. 180◦ 

D. 270◦ 

10. 

The value of arg(5i) is: 

A. 0◦ 

B. 90◦ 

C. 180◦ 

D. 270◦ 

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