Q62.If a > 0 and z = (1+i)2a−i √25 (1) −15 −35 i (2) −35 −15 i (3) 1 5 −35 i (4) −15 + 53 i
What This Question Tests
This question requires simplifying a complex number expression into its a+ib form and then applying the modulus concept. It tests basic complex number operations and computation.
Concepts Tested
Formulas Used
(a+b)² = a² + b² + 2ab
|z| = √(x² + y²)
z = x + iy
📚 NCERT Sections This Tests
1.27 — If The Solubility Product Of Cus Is 6 × 10–16, Calculate The Maximum Molarity Of
Chemistry Class 11 · Chapter 1
1.27 If the solubility product of CuS is 6 × 10–16, calculate the maximum molarity of CuS in aqueous solution.
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
2.5 — A Parallel Plate Capacitor With Air Between The Plates Has A
Physics Class 11 · Chapter 2
2.5 A parallel plate capacitor with air between the plates has a capacitance of 8 pF (1pF = 10–12 F). What will be the capacitance if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant 6?
📋 Question Details
- Chapter
- Complex Numbers
- Topic
- Modulus and argument of complex numbers
- Year
- 2019
- Shift
- 10 Apr Shift 1
- Q Number
- Q62
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 5: Complex Numbers and Quadratic Equations
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