Which of the following statements about quantum computing are correct? Choose the correct answer from the options given below:
1.Principles of quantum physics are applied in it
2.Quantum bits (qubits) are used as the information unit
3.Quantum computers emit radiation fatal to humans
A1 and 2 ✓ Correct
B1 and 3
C2 and 3
D1, 2 and 3
Correct answer: (A) 1 and 2
Explanation
Quantum computing applies the principles of quantum physics and uses quantum bits or qubits as its unit of information.
Statement 1 is right because superposition and entanglement from quantum physics drive these machines.
Statement 2 is right because a qubit can represent 0 and 1 at once, unlike a classical bit.
Statement 3 is false, as quantum computers do not emit radiation fatal to humans.
They actually need extreme cooling near absolute zero to keep the delicate qubits stable.
For certain problems like factoring large numbers, a quantum machine could vastly outpace a classical one.
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