The outside rearview mirror of modem automobiles is marked with warning objects in mirror are closer than they appear. Such mirrors are

examrobotsa's picture

Submitted by examrobotsa on

Q: 45 (CDS-II/2015)
The outside rearview mirror of modem automobiles is marked with warning “objects in mirror are closer than they appear”. Such mirrors are

question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,28,25,5,13,7,28

keywords: 

{'outside rearview mirror': [0, 0, 0, 1], 'concave mirrors': [0, 0, 0, 3], 'plane mirrors': [0, 0, 0, 1], 'convex mirrors': [0, 0, 0, 1], 'mirrors': [1, 0, 0, 2], 'such mirrors': [0, 0, 0, 1], 'mirror': [0, 0, 0, 1], 'modem automobiles': [0, 0, 0, 1], 'small focal lengths': [0, 0, 0, 1], 'large focal lengths': [0, 0, 0, 1], 'objects': [1, 0, 0, 7]}

The correct answer is option 4 - convex mirrors.

Convex mirrors are used as the outside rearview mirrors in modern automobiles. These mirrors have a curved surface that bulges outwards. They are designed in a way that they have a wider field of view compared to other types of mirrors. This wider field of view allows the driver to see more of the area behind and to the sides of the car.

The warning, "objects in mirror are closer than they appear", is printed on these convex mirrors. This is because convex mirrors cause objects to appear smaller and farther away than they actually are. The curvature of the mirror causes the light rays to diverge, making objects appear smaller and giving a broader view.

By using convex mirrors, drivers are able to see a larger area behind their vehicle, which helps with lane changing, parking, and overall safety. However, due to the distortion created by the convex shape, objects may appear smaller and farther away than they actually are. Hence, the warning is necessary to remind drivers to take this into account when judging distances and making decisions.

Practice this on app