What is the importance of magnification. Explain by giving examples.
Asked by rushabhjain.av | 10th Mar, 2019, 09:10: PM
Magnification = length of image / length of object
Magnification of image is given by numerical value like -2 , +1. Every magnification value contain two things
First its sign it can be either +be or - be.
+ve value shows that image and object both lie on the same side of line that's why it is also known as erect image. Like the image formation by concave mirror when object is placed between focus and pole.
-ve value shows that image and object will lie in the opposite side of principal axis that's why it is also known as inverted news. Like image formation by concave mirror when the object is placed between centre of curvature and focus.
The other part of the magnification is numerical value if it is greater than 1 then the image length will be greater than object length.
If its value is less than 1 then the length of image will be less than object length.
Answered by Ankit K | 10th Mar, 2019, 09:32: PM
- The image of an object formed by a lens is of magnification -1. If the distance between the object and it's image
- In physics,what kind of image will be form when concave and convex mirror and in lens are kept together
- Is there any ratio for size of object in Convex mirror and real size of object ?
- Which mirror is used as a torch reflector?
- Source of light of kept at focus of mirror in headlighte of vehicles give reason
- A Ray of light passing through the centre of curvature of a concave mirror is incident on its reflecting surface . What is the angle of incidence and angle of reflection of this ray.
- What is the general value of magnification in lens and mirror
- An object is placed in front of a concave mirror of focal length 30 cm. The virtual image of the object is obtained at a distance 20 cm from the mirror. Calculate the position of the object. Please explain briefly step by step
- The centre of curvature of a covnvex mirror is 20 cm,from the pole of the mirror find its length
- A thin rod of length f/3 is placed along optical axis a concave mirror of focal length f such that its image which is real and elongated just touches rod . calculate the magnification.
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number