Which of the following sensors is primarily used in smartphones to detect rotation and angular velocity, thereby enhancing gaming and augmented reality applications?

Correct option is D

A gyroscope is the sensor primarily used in smartphones to detect rotation and angular velocity. It plays a key role in enhancing applications such as gaming and augmented reality (AR) by detecting the orientation of the phone and tracking movement in space, providing more immersive experiences.
Important Key Points:
1. Gyroscope: A gyroscope measures the angular velocity or rotation of the smartphone around its three axes. This helps in tracking the phone's orientation, essential for applications like AR and motion-based gaming.
2. Gaming and AR: The gyroscope improves the interaction between the device and the user, providing real-time motion tracking to enhance the gaming and augmented reality experience.
3. Accurate Movement Detection: The gyroscope allows the device to detect even slight rotational movements, making it a crucial component for high-precision applications like gaming and AR.
Knowledge Booster:
· Barometer: A barometer measures atmospheric pressure, which is useful for weather applications but does not detect rotation or angular velocity, so it is not relevant for gaming or AR.
· Magnetometer: A magnetometer detects the magnetic field strength and is primarily used for compass functions, but it does not measure rotation or angular velocity like a gyroscope.
· Proximity sensor: A proximity sensor detects how close an object is to the smartphone, mainly used for screen-off functions during calls or detecting obstructions. It doesn't measure rotation or angular velocity.