How far should hold an object from a concave mirror of focal length 40cm so as to get a virtual image twice the size of the object?
Table of Contents
- 1 How far should hold an object from a concave mirror of focal length 40cm so as to get a virtual image twice the size of the object?
- 2 How do you find the height of an image in a concave mirror?
- 3 How far should an object be held from a concave mirror of focal length 40cm?
- 4 How far should an object be placed from a concave mirror of focal length 40cm?
- 5 What is the focal length of concave mirror?
- 6 What is concave mirror Class 10?
How far should hold an object from a concave mirror of focal length 40cm so as to get a virtual image twice the size of the object?
How far should we hold an object from a concave mirrow of focal length 40cm so as to get a virtual image twice the size of the object? 2u because the magnification is 2, minus because it is a virtual distance, to a virtual image, behind the mirror.
How do you find the height of an image in a concave mirror?
- Given: Concave mirror f=−10cm and m=−2 height of object=h.
- Solution: Since m=u−v=2=hhi
- v=−2u.
- v1+u1=f1
- vu=fu−1.
- m=u−v=f−uf
- Since m=−2=f−uf
- −2f+2u=f.
What is the size of the image formed by a concave mirror when the object is at Focus?
In a concave mirror, when the object is in focus, the size of the image is highly enlarged.
How far should an object be held from a concave mirror of focal length 40cm?
Hence, if the object is held at a distance of 53.33 cm, a real image thrice in size is obtained.
How far should an object be placed from a concave mirror of focal length 40cm?
we should be held the object 26.66 cm away in front of concave mirror. This discussion on How far should an object be held from a concave mirror of focal length 40cm so as to get an image magnified three times? is done on EduRev Study Group by Class 10 Students.
What is the mirror formula for concave mirror?
1/f= 1/u + 1/v. This equation is referred to as the mirror formula. The formula holds for both concave and convex mirrors.
What is the focal length of concave mirror?
Focal length – Focal length of the concave mirror is the distance between the pole P of concave mirror and the focus F. By obtaining the Real image of the distant object, the focal length of concave mirror can be determined, as shown in the diagram.
What is concave mirror Class 10?
1)Concave Mirror:A spherical mirror whose reflecting surface is curved inwards ie faces towards the centre of sphere.
How far should an object be placed from convex mirror of focal length 40cm so that the image of the object is obtained half of the size of the object?
The object should be placed 100 cm to the left of the mirror.