The terms ‘Event Horizon’, ‘Singularity’, `String Theory’ and ‘Standard Model’ are sometimes seen in the news in the context of
- Observation and understanding of the Universe
- Study of the solar and the lunar eclipses
- Placing satellites in the orbit of the Earth
- Origin and evolution of living organisms on the Earth
Explanation
Option (a) is correct
- All these concepts aim to explain the fundamental nature and structure of the Universe.
- Event horizon: It is the spherical outer boundary of a black hole loosely considered to be its “surface.” It is the point, according to NASA, that the gravitational influence of the black hole becomes so great that not even light is fast enough to escape it.
- Singularity: It refers to a region in space where the gravitational field becomes infinitely strong, and the laws of physics break down. It is believed to exist at the center of black holes, where matter is compressed into an infinitely small space, creating infinite density.
- String theory: It is a theoretical framework in physics that suggests the fundamental building blocks of the universe are not point-like particles but rather tiny, one-dimensional “strings.” The study of string theory is part of the broader effort to understand the fundamental nature of the universe.
- Standard Model: It is a well-established theory that describes the fundamental particles (like quarks and leptons) and the forces (electromagnetic, weak, and strong) that govern their interactions.
