Answer :
Final answer:
A telescopic sight, also known as a scope, is a small telescope mounted on a firearm that helps shooters accurately aim by providing magnification of the target and an aiming reticle.
Explanation:
The device known as a telescopic sight, or scope, is a small telescope mounted on a firearm to assist with aiming. This optical instrument helps to magnify the target and provide an aiming point for the shooter. Unlike a laser pointer, which emits a beam of light to mark a target, or a ballistic rangefinder, which is used to measure the distance to a target, a telescopic sight is used to improve the accuracy of aim through magnification and reticle mark. To compensate for bullet drop due to gravity over distance, gun sights are adjusted to aim high, making the gun accurate at a specific range. This principle is important because as distance increases, the bullet drops more due to gravity, requiring more elevation compensation.