MCQ Quiz on Module1 and 2

What is a Qubit in quantum computing?

• Quantum Gate

• Classical Register

• Quantum Binary Digit

• Matrix Operator

According to Moore’s Law, the number of transistors on a chip doubles approximately every:

• 5 years

• 18-24 months

• 6 months

• 1 year

What property allows a quantum system to exist in multiple states at once?

• Superposition

• Interference

• Tunneling

• Entanglement

What ends Moore’s Law trend in classical computing?

• Optical computing

• Increased clock speeds

• Reduced transistor cost

• Quantum effects like tunneling

Which of the following is not a property of Qubits?

• Bistability

• Decoherence

• Tunneling

• Superposition

A qubit can be in state |ψ⟩ = α|0⟩ + β|1⟩. What condition must be satisfied?

• αβ = 0

• α² − β² = 1

• |α|² + |β|² = 1

• α + β = 1

What is the Dirac notation for a row vector?

• ⟨ψ|

• ⟨bra|

• |ket⟩

• |ψ⟩

The conjugate of a matrix involves:

• Negating the diagonal

• Taking complex conjugates of elements

• Transposing it

• Swapping rows and columns

A matrix U is unitary if:

• U × U = 0

• U × U† = I

• U = U†

• U† × U† = 0

The Pauli-X gate is equivalent to:

• Identity Gate

• Classical NOT Gate

• Hadamard Gate

• Phase Gate