When an object of height 5 cm is placed at a distance of 20 cm in front of a concave mirror 2 times magnified real image is formed How is the image distance?
Mirror formula is (1/v) + (1/u) = 1/f1/v = (1/f) − (1/u) = (−1/15) + (1/20) = −1/60 v = − 60 cm. The screen should be placed at 60 cm from the mirror. The image is real. Magnification m = h’/h = − v/u = 60/(– 20) = – 3 Height of the image h’ = mh = (– 3)x5 = − 15 cm The image in inverted and enlarged.
What is the size of the image in concave mirror?
Summary
| S. No | Position of Object | Size of Image |
|---|---|---|
| 1 | At infinity | Highly Diminished |
| 2 | Beyond the center of curvature C | Diminished |
| 3 | At the center of curvature C | Same Size |
| 4 | Between C and F | Enlarged |
What is the nature and size of image formed by convex mirror?
Image Formation by Convex Mirror
| Positions and Nature of Image in Convex Mirror | ||
|---|---|---|
| Position of Object | Position of Image | Size of Image |
| At infinity | At F, behind mirror | Highly diminished |
| Between infinity and P | Between F and P, behind mirror | Diminished |
What is the nature of image formed when an object is placed at a distance of 5 cm from a concave mirror of focal length 15 cm?
Solution : The object lies between pole and principal focus of concave mirror. Therefore, the image formed is virtual, erect and magnified. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.
When an object of size 1 cm is placed at a distance of 15 cm from a concave mirror of focal length 10 cm Where is the image formed and how much magnification is produced?
Explanation: Here we have H 1 as 1 cm, The distance of the image formed is given as -15 cm. And the focal length of the object is given as -10 CM. Now since we get the value of v as -30.
What is the nature of the image formed by a concave mirror?
If the magnification is 4 of the image formed by a concave mirror, the nature of the image formed will be virtual and erect.
How many inches is 1920×1080 pixels?
a 19 inch 1280×1024 pixel LCD screen shows it as 5.8 inches wide. a 20 inch 1680×1050 pixel LCD screen shows it as 5 inches wide. a 23 inch 1920×1080 pixel LCD screen (110% text size) shows it as 5.75 inches wide.