UPSC Prelims 2022 Question:

Which one of the following is the context in which the term “Qubit” is mentioned?

Explanation: 

• A qubit (or quantum bit) is the quantum mechanical analogue of a classical bit. In classical computing the information is encoded in bits, where each bit can have the value zero or one. In quantum computing the information is encoded in qubits. Qubits can be in a state of 0 or 1 or (unlike a classical bit) in a linear combination of both states. The name of this phenomenon is superposition.
  
  

Therefore, option (2) is the correct answer.

Subject: Science & Technology|Physics