where an object should be placed before a concave mirror of focal length 20cm so that a real image is formed at a distance of 60cm from it?
Object Distance (u)
= ? So, the object must be placed between Centre of Curvature and Focus at the distance of 30 cm from the mirror.
Where an object should be placed before a concave mirror of focal length 20cm so that a real image is formed at a distance of 60CM from it?
where an object should be placed before a concave mirror of focal length 20cm so that a real image is formed at a distance of 60cm from it?
Object Distance (u)
= ? So, the object must be placed between Centre of Curvature and Focus at the distance of 30 cm from the mirror.
Where should object be placed infront of a concave mirror of focal length 20 cm so as to obtain a real image magnified two times?
Answer Expert Verified
magnification “m”=-2times. 40+2u=-20. so if you object
be placed at the distance of 30 cm
then the two times magnified image will be obtain. hope it help you.
Where should an object be placed before a concave mirror so that its image formed is of same size of that of object *?
Hence, the object must be placed
at the center of curvature
. The following ray diagram shows the set up for the same. Therefore, the correct option C i.e. the object should be placed at the center of curvature of the concave mirror so that image is the same size as the object.
Where should an object be placed in front of a concave mirror of focal length 20cm so as to obtain?
so the object must be placed
30 cm
from the mirror. This discussion on Where should an object be placed in front of a concave mirror of focal length 20 cm so as to obtain a two times magnified real image? is done on EduRev Study Group by Class 10 Students.
At what distance must an object be placed from the mirror in order that a real image double its size may be obtained?
The object should be placed
10 cm
in front of the concave mirror to obtain an image which is virtual and double the size of the object.
What is the position of the image when the object is placed at a distance of 24 cm from a concave mirror of focal length 24 cm?
An object is placed 24cm from a concave mirror. Its
image is inverted and is double the size of the object
.
At what distance from a concave mirror of focal length 20 cm should an object be placed?
♥ OBJECT SHOULD BE PLACED AT
40 CM
…
What kind of image is formed by concave lenses?
Concave lenses create only
virtual images
. After the rays are refracted, they never converge and so there will be no real images. All concave lens images will be upright, virtual, and diminished, and can be found between the F and the lens.
How far should an object be placed from a concave mirror of focal length 20cm so as to obtain an image magnified three times?
(b) Now, if the image is virtual and 3 times magnified, then we have to find the position of the object. Thus, the object should be placed at a distance of
10 cm
to get a virtual image three times the height of the object.
What is the position of object when image is real inverted and of same size as of object?
The reason being, the image formed by a concave mirror is real, inverted and of the same size as the object. The position of the object must then be
at the centre of curvature
.
What is the nature of the image formed by a concave mirror if the magnification is 4?
If the magnification is 4 of the image formed by a concave mirror, the nature of the image formed will be
virtual and erect
.
Are real images always inverted?
Real image is found when the rays of light converge at a point after reflection on a mirror or after refraction through a lens. … If we placed an object above the x-axis then by geometry the rays will converge below the axis. Therefore, the image formed will be an inverted image. Hence,
a real image is always inverted
.
Where an object should be placed in front of a convex lens of focal length 20cm?
Answer: At twice the focal length, the image formed by the convex lens is real and of the same size as the object. If the lens has a focal length of 20 cm, the object must be positioned
40 cm
in front of the lens, creating an inverted image of the same size as the target, 40 cm behind the lens.
Where an object should be placed in front of a concave mirror so as to get unit magnification?
It should be placed
at a centre of curvature
to get unit magnification . An object should be placed at the centre of curvature for an image to form the light while coming for infinity will an image in front of the concave mirror.
Where should an object be placed in front of a concave lens?
The object should be placed
within the focus (between the pole and the focus)
and in front of the concave mirror in order to obtain a virtual, erect and magnified image.
