1. Superposition always lets a qubit store more data than a classical bit. 2. A quantum system exists in multiple states simultaneously until measured. 3. Measurement collapses a quantum state into a definite state. Which of the statements are correct?

What is correct for quantum entanglement? 1. Measurement of one entangled particle instantly affects the other. 2. Entanglement allows faster-than-light information transfer. 3. Entangled particles exhibit correlated properties regardless of distance.

1. Multiple qubits can be entangled, enhancing computation. 2. A qubit always retains its superposition state regardless of environmental interaction. 3. A qubit can represent both 0 and 1 simultaneously. Which of the statements are correct?

1. Quantum tunnelling lets particles cross potential barriers even with lower energy. 2. Tunnelling probability depends on barrier width & height. 3. Quantum tunnelling violates the law of conservation of energy. Which statements are correct?

1. Energy levels in atoms are continuous rather than discrete. 2. Electrons can only occupy specific allowed energy levels. 3. Transition of electrons between energy levels involves absorption or emission of discrete energy. Which statements are correct?

1. Quantum tunnelling becomes negligible for macroscopic objects. 2. Energy quantisation means systems have arbitrary energy levels. 3. Both quantum tunnelling and energy quantisation arise due to wave-like behaviour of particles. Which are correct?

1. 3D printing involves layer-by-layer addition of material to create objects. 2. It is a form of subtractive manufacturing where material is removed to shape objects. 3. It allows rapid prototyping and customisation of designs. Which are correct?

1. 3D printing reduces material wastage compared to traditional manufacturing. 2. It is suitable for complex geometries difficult with conventional methods. 3. It always enables faster mass production compared to traditional methods. Which are correct?

1. 3D printing enables decentralised, near-use manufacturing. 2. 3D printing design files can be easily modified without changing the setup. 3. 3D printing can reduce inventory requirements by enabling on-demand production. Which are correct?

With reference to Bluetooth technology, consider:1. Bluetooth operates in the 2.4 GHz ISM band. 2. It uses frequency hopping to reduce interference. 3. It requires line-of-sight communication between devices. Which of the statements are correct?

1. Bluetooth Low Energy (BLE) is designed to consume less power compared to classic Bluetooth. 2. BLE suits continuous high data-rate uses like audio streaming. 3. BLE is widely used in IoT devices like fitness trackers. Which statements are correct?

1. Bluetooth devices can form small networks called piconets. 2. A Bluetooth piconet can include one master and multiple slave devices. 3. Bluetooth communication is designed for long-range, high-power transmission similar to Wi-Fi. Which are correct?