Advertisements
Advertisements
Question
A convex mirror is used
Options
as a shaving mirror
as a head mirror by a dentist
as a rear view mirror by a driver
as a reflector in torch
Advertisements
Solution
A convex mirror is used as a rear view mirror by a driver.
APPEARS IN
RELATED QUESTIONS
Why can you not use a concave mirror as a rear-view mirror in vehicles?
A boy is standing in front of and close to a special mirror. He finds the image of his head bigger than normal, the middle part of his body of the same size, and his legs smaller than normal. The special mirror is made up of three types of mirrors in the following order from top downwards:
(a) Convex, Plane, Concave
(b) Plane, Convex, Concave
(c) Concave, Plane, Convex
(d) Convex, Concave, Plane
Write true or false
The focal length of a convex mirror is equal to its radius of curvature.
To determine the focal length of a convex lens by obtaining a sharp image of a distant object we generally follow the following steps which are not in proper sequence.
(a) Hold the lens between the object and the screen
(B) Measure the distance between the lens and the screen
(C) Select a well lit distant object
(D) Place a screen opposite to the object on the lab table
(e) Adjust the position of the lens to form a sharp image
The correct sequence of these steps is:
(A) c, a, d, e, b
(B) c, d, a, e, b
(C) c, d, e, a, b
(D) c, a, e, d, b
When the reflecting surface is curved outwards the mirror formed will be ______.
The image formed by these mirrors is ______ than the object.
Assertion: Convex mirrors are used as a rearview mirror in vehicles for observing traffic at our back.
Reason: A convex mirror has a much larger field of view.
Why a convex mirror is preferred for rearview mirrors in cars?
Match the following.
| Column I | Column II |
| Convex mirror | Radio telescopes |
| Parabolic mirror | Rear-view mirror |
| Snell’s law | Kaleidoscope |
| Dispersion of light | sin i/sin r =μ |
| Refractive index | Rainbow |
Which type of mirror is used in the following?
Street lights
