Question

Why do some cars have a blind spot mirror (small mirror) placed in the rear view mirrors of their cars? Is it a concave or convex mirror or plane mirror?

Answer 1

The convex mirror produces an upright image of any object and offers a wide viewing area as compared to the plane mirror.Therefore convex mirror is used


A blind spot in a vehicle is an area around the vehicle that cannot be directly observed by the driver while at the controls, under existing circumstances.[1] Blind spots exist in a wide range of vehicles: aircraft, cars, motorboats, sailboats, and trucks. Other types of transport have no blind spots at all, such as bicycles, horses, and motorcycles. Proper adjustment of mirrors and use of other technical solutions can eliminate or alleviate vehicle blind spots.

A no zone is one of several areas around a large truck, where the truck driver cannot see.[2] Collisions frequently occur in no zones.

In transport, driver visibility is the maximum distance at which the driver of a vehicle can see and identify prominent objects around the vehicle.[3] Visibility is primarily determined by weather conditions (see visibility) and by a vehicle's design.[4] The parts of a vehicle that influence visibility include the windshield, the dashboard and the pillars. Good driver visibility is essential to safe road traffic.


Sign used in some countries to warn of a blind spot ahead on the road
Blind spots may occur in the front of the driver when the A-pillar (also called the windshield pillar), side-view mirror, or interior rear-view mirror block a driver's view of the road. Behind the driver, cargo, headrests, and additional pillars may reduce visibility.