Describe any three light instruments of light which use lenses.
Answers
Answered by
10
Multiple Lenses:
There are many devices like telescopes and microscopes which uses multiple lenses to create images.Analyzing any system having multiple lenses shows that it works in stages where each lens forms an image of the object. The original object will work as the object for the first lens and creates an image. This new image will be the object for the second lens and so on. You can see this with these examples.
Microscope:
A microscope has two converging lens. This is because it is easier to get higher magnification with two lenses rather than just one. Use of one lens can magnify 5 times more and using a second will magnify 7 times, and you will get an overall magnification of 35 which is not possible in one lens. It’s an easy procedure than to get magnification by a factor of 35 with a single lens. A ray diagram of microscope arrangement is given below. Here you can see the image is the object for the second lens and the image formed by the second lens is the image that you would see when you looked through the microscope.
Telescopes:
As we use telescope to view a object that is at very distant place, therefore, a telescope needs at least two lenses. The first lens forms a diminished image which is nearer to its focal point. This device is designed in a way so that real and inverted image formed by the first lens is just nearer to the second lens than its focal length. WIth the help of a magnifying glass, we gets a enlarged image which is virtual. The final image then inverted with respect to the object. This doesn’t really matter with the astronomical telescope.While observing an object which is on earth, we usually prefer a straight image which is obtained using a third lens.
There are many devices like telescopes and microscopes which uses multiple lenses to create images.Analyzing any system having multiple lenses shows that it works in stages where each lens forms an image of the object. The original object will work as the object for the first lens and creates an image. This new image will be the object for the second lens and so on. You can see this with these examples.
Microscope:
A microscope has two converging lens. This is because it is easier to get higher magnification with two lenses rather than just one. Use of one lens can magnify 5 times more and using a second will magnify 7 times, and you will get an overall magnification of 35 which is not possible in one lens. It’s an easy procedure than to get magnification by a factor of 35 with a single lens. A ray diagram of microscope arrangement is given below. Here you can see the image is the object for the second lens and the image formed by the second lens is the image that you would see when you looked through the microscope.
Telescopes:
As we use telescope to view a object that is at very distant place, therefore, a telescope needs at least two lenses. The first lens forms a diminished image which is nearer to its focal point. This device is designed in a way so that real and inverted image formed by the first lens is just nearer to the second lens than its focal length. WIth the help of a magnifying glass, we gets a enlarged image which is virtual. The final image then inverted with respect to the object. This doesn’t really matter with the astronomical telescope.While observing an object which is on earth, we usually prefer a straight image which is obtained using a third lens.
Answered by
8
Hello
The three instruments which uses
Lens are as follows
1 specs
2 Durbin
3 telescope
Please rate me 5 stars and mark it as brainliest
Similar questions