![In order to obtain a real image of magnification 2 using converging lens of focal length 20 cm, where should an object be placed: In order to obtain a real image of magnification 2 using converging lens of focal length 20 cm, where should an object be placed:](https://dwes9vv9u0550.cloudfront.net/images/2736613/fa0e6544-fdf8-40dd-8309-0e68d71c9c5b.jpg)
In order to obtain a real image of magnification 2 using converging lens of focal length 20 cm, where should an object be placed:
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![The magnifying power of a simple microscope is 6. The focal length of its lens in metres wil - YouTube The magnifying power of a simple microscope is 6. The focal length of its lens in metres wil - YouTube](https://i.ytimg.com/vi/ClwzbqY4ZUE/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AH-CYAC0AWKAgwIABABGGUgZShlMA8=&rs=AOn4CLASuWNVjd5RWYcR80Co5fad-5sZAA)
The magnifying power of a simple microscope is 6. The focal length of its lens in metres wil - YouTube
![Q: What determines the size of the bright spot when you focus sunlight with a lens? | Ask a Mathematician / Ask a Physicist Q: What determines the size of the bright spot when you focus sunlight with a lens? | Ask a Mathematician / Ask a Physicist](https://www.askamathematician.com/wp-content/uploads/2017/10/lens.jpg)
Q: What determines the size of the bright spot when you focus sunlight with a lens? | Ask a Mathematician / Ask a Physicist
![A magnifying glass with a focal length of +4\ cm is placed 3\ cm above a page of print. At what distance from the lens is the image of this object? a) - A magnifying glass with a focal length of +4\ cm is placed 3\ cm above a page of print. At what distance from the lens is the image of this object? a) -](https://homework.study.com/cimages/multimages/16/magni3840709419629965386.png)
A magnifying glass with a focal length of +4\ cm is placed 3\ cm above a page of print. At what distance from the lens is the image of this object? a) -
If you hold a magnifying glass of focal length 10 cm in the sunlight and place a pieceof paper at its focus, you can burn a hole in the paper. What could
![A simple magnifying glass consists of .A) a concave lensB) a convex lens of large focal lengthC) a convex lens of small focal lengthD) a plane mirror A simple magnifying glass consists of .A) a concave lensB) a convex lens of large focal lengthC) a convex lens of small focal lengthD) a plane mirror](https://www.vedantu.com/question-sets/ffa4584f-8a65-490a-9076-6307b24719492163205321743785181.png)
A simple magnifying glass consists of .A) a concave lensB) a convex lens of large focal lengthC) a convex lens of small focal lengthD) a plane mirror
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Double Convex Lens, 250mm Focal Length, 1.5" (38mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
![Draw a diagram to show how a converging lens held close to the eye acts as a magnifying glass. Why is it usual to choose a lens of short focal length for Draw a diagram to show how a converging lens held close to the eye acts as a magnifying glass. Why is it usual to choose a lens of short focal length for](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/187875/content_screenshot_from_2018-06-17_23-48-35.png)