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प्रश्न
Why are the mirrors fitted on the outside of cars convex?
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उत्तर
- The image formed by a convex mirror is small and straight.
- This image remains straightforward; But as we move the mirror further away from the object, the image becomes smaller.
- As a result, we see all the surrounding images in the mirror.
- The use of convex mirrors in the outside of the vehicle gives the driver a straight, narrow and clear image of the vehicles behind the vehicle.
- Therefore, the mirror fitted on the outside of the vehicle is convex.
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संबंधित प्रश्न
An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.
What is meant by the principal focus of a convex mirror?
What is the nature of a mirror having a focal length of, +10 cm?
State the relation between object distance, image distance and focal length of a spherical mirror (concave mirror or convex mirror).
If you want to see an enlarged image of your face, state whether you will use a concave mirror or a convex mirror?
An object is placed at a long distance in front of a convex mirror of radius of curvature 30 cm. State the position of its image.
Name the mirror which can give:
an erect and diminished image of an object.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror without touching them?
An object is placed at a distance of 10 cm from a convex mirror of focal length 5 cm.
(a) Draw a ray-diagram showing the formation image
(b) State two characteristics of the image formed
(c) Calculate the distance of the image from mirror.
An object placed 20 cm in front of a mirror is found to have an image 15 cm (a) in front of it, (b) behind the mirror. Find the focal length of the mirror and the kind of mirror in each case.
A shop security mirror 5.0 m from certain items displayed in the shop produces on-tenth magnification.
What is the type of mirror?
A shop security mirror 5.0 m from certain items displayed in the shop produces one-tenth magnification.
- What is the type of mirror?
- What is the radius of curvature of the mirror?
Draw the given diagram in your answer book and complete it for the path of a ray of light after passing through the lens.
Write true or false
The focal length of a convex mirror is equal to its radius of curvature.
A convex mirror is used
The diagram given below in fig shows a ray of light AO falling on a surface separating two media. Draw the refracted ray in each, case.
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
The nature of image formed by a convex mirror when the object distance from the mirror is less than the distance between pole and focal point (F) of the mirror would be ______.
The image formed by these mirrors is ______ than the object.
