CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Devices Made Using Plane Mirrors

If the image ...

Question

If the image formed by a mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it? Draw a ray diagram to justify your answer. Where and why do we generally use this type of mirror?

Open in App

Solution

A convex mirror is always used forerect diminished virtual image for all the positions of the object placed in front of it.

Generally convex mirror is used as rear view mirrors in automobiles and as reflectors in street light bulbs as well as in parking lots.

Suggest Corrections

thumbs-up

3

Similar questions

Q. If the image formed by a spherical mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it? Draw a labelled ray diagram to support your answer.

Q. (a) If the image formed by a mirror for all positions of the object placed in front of it is always diminished, erect and virtual, name the type of the mirror used and also draw a ray diagram to justify your answer. Write one use such mirrors are put to and why.
(b) Define the radius of curvature of spherical mirrors. Find the nature and focal length of spherical mirror whose radius of curvature is +24 cm.

Q. If the image formed by a lens for all positions of an object placed in front it is always erect and diminished What is the nature of this lens? Draw a ray diagram to justify your answer. If the numerical value of the power of this lens of 10 D, What is its focal length in the Cartesian system ?

Q. It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.

(i) What should be the range of distance of an object placed in front of the mirror ?

(ii) Will the image be smaller or larger than the object. Draw a ray diagram to show the formation of image in this case.

(iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror? Draw ray a diagram for this situation to justify your answer.

Show the positions of pole, principal focus and the centre of curvature in the above ray diagrams.

Q. The image of an object formed by a mirror is real, inverted and is of magnification -1. If the image is at a distance of 40 cm from the mirror, where is the object placed ? Where would the image be if the object is moved 20 cm towards the mirror ? State reason and also draw ray diagram for the new position of the object to justify your answer.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Devices Made Using Plane Mirrors

PHYSICS

Watch in App

explore_more_icon

Explore more

Devices Made Using Plane Mirrors

Standard VII Physics

Join BYJU'S Learning Program

CrossIcon