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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Observe the Following Figure and Complete the Table - Science and Technology 1

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प्रश्न

Observe the following figure and complete the table:

Points Answer
(i) Position of the object  
(ii) Position of the image  
(iii) Size of the image   
(iv) Nature of the image  
आकृती
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उत्तर

Points Answer
(i) Position of the object between F1 and optical center
(ii) Position of the image same side to the object
(between 2F1 and F1)
(iii) Size of the image  Magnified
(iv) Nature of the image Virtual and erect
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2018-2019 (March) Set 1

संबंधित प्रश्‍न

Draw a ray diagram to show the formation of image in the above situation


An object 5 cm is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position, nature and size of the image.


"A lens can form a magnified erect image as well as magnified inverted image of an object placed in front of it." State the nature of this lens and draw ray diagrams to justify the above statement. Mark the positions of O, F and 2F in the diagram.


Write one condition where it does not bend when entering a medium of different optical density.


Where should an object be placed so that a real and inverted image of the same size as the object is obtained using a convex lens?


An object AB is placed between O and F1 on the principal axis of a converging lens as shown in the diagram.

Copy the diagram and by using three standard rays starting from point A, obtain an image of the object AB.


An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find :

1) the position of the image

2) nature of the image


Draw a ray diagram to show the formation of a real magnified image by a convex lens. (In your sketch the position of object and image with respect to the principal focus of lens should be shown clearly). 


An object 50 cm tall is placed on the principal axis of a convex lens. Its 20 cm tall image is formed on the screen placed at a distance of 10 cm from the lens. Calculate the focal length of the lens. 


A convex lens of focal length 10 cm is placed in contact with a concave lens of focal length 20 cm. The focal length of this combination of lenses will be:
(a) +10 cm
(b) +20 cm
(c) −10 cm
(d) −20 cm


Show by a diagram the refraction of two light rays incident parallel to the principal axis on a convex lens by treating it as a combination of a glass slab and two triangular glass prisms.


A convex lens is placed in water. Its focal length will ______.


A convex lens forms an image of an object equal to the size of the object. State two more characteristics of the image.


The focal length of a lens is positive. In this case, state the kind of lens.


Point out the difference between a convex lens and a concave lens.


State the position of object, position of image, nature of image when: Convex lens is used as objective lens of photographic camera.


Draw a diagram to show the convergent action of a convex lens by treating it as a combination of glass block and two triangular glass prisms, with the aid of two parallel incident rays.


For a specific glass lens f = 0.5 m. This is the only information given to the student. Which type of lens is given to him and what is its power?


A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as show in the figure. Which of the following could be inside the box?


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