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Multiple choice physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

Mirrors on the outside of the passenger side of the cars often contain a message that says something like. "Objects are closer than they appear." In the other words, the images seen in the mirror, although looking like the objects in other respects, appear to be further away than they actually are, because the images are the smaller than the objects.
What kind of mirror is being used in this case? 

  1. plane mirror

  2. convex mirror

  3. concave mirror

  4. The mirror could be concave or convex.

  5. The mirror could be flat or concave.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Convex mirrors are used in this case.

Since the mirrors are bend outwards, a large range in area to view is covered to see objects behind in cars.
The magnification of the objects is lesser than one for distant objects for convex mirrors. Hence the objects appear farther away than they actually are.

Multiple choice physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

Mirrors on the outside of the passenger side of cars often contain a message that says something like, "Objects are closer than they appear." In other words, the image seen in the mirror, although looking like the objects in other respects, appear to be further away than they actually are, because the images are smaller than the objects.
What kind of mirror is being used in this case?

  1. Plane mirror

  2. Convex mirror

  3. Concave mirror

  4. The mirror could be concave or convex

  5. The mirror could be flat or concave
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The mirror used is a convex mirror. 
Since it forms virtual and 'diminished' images, the objects appear to be distant in the mirror than they actually are.

Also the outward curvature of the mirror makes it cover more area to view.

Multiple choice physics reflection of light at curved surfaces uses of curved mirrors uses of spherical mirror uses of spherical mirrors

State whether true or false : 

Convex mirrors enable the driver to view much larger area than would be possible with a plane mirror.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Convex mirror give an erect ,virtual,full size image of distant object with a wider field of view. Thus,convex mirrors enables the driver to view much larger area than would be possible with a plane mirror.