Why do we prefer a convex mirror as a rear-view mirror in vehicles?
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
Answer-
A convex mirror is preferred as a rear-view mirror in cars and vehicles as it gives a wider field of view, which helps the driver see most of the traffic behind him. Convex mirrors always form an erect, virtual, and diminished image of the objects placed in front of it.
Suggested Q&A
Science · Class 10- ScienceClass 10Define power of a lens. What is its unit? One student uses a lens of focal length 50 cm and another of – 50 cm. What is the nature of the lens and its power used by each of them?
- ScienceClass 10Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?
- ScienceClass 10Find out, from the table, the medium having the highest optical density. Also, find the medium with the lowest optical density.
- ScienceClass 10Light enters from air to glass, having a refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 x 108 ms-1.
- ScienceClass 10A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?
- ScienceClass 10Find the focal length of a convex mirror whose radius of curvature is 32 cm.
- ScienceClass 10Name the mirror that can give an erect and enlarged image of an object.
- ScienceClass 10The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
- ScienceClass 10Define the principal focus of a concave mirror.
- ScienceClass 10Explain the following. a. Why is the tungsten used almost exclusively for filament of electric lamps? b. Why are the conductors of electric heating devices, such as bread-toasters and electric irons, made of an alloy rather than a pure metal? c. Why is the series arrangement not used for domestic circuits? d. How does the resistance of a wire vary with its area of cross-section? e. Why copper and aluminium wires are usually employed for electricity transmission?