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

Observe the Following Figure and Complete the Table

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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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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2018-2019 (March) Set 1

संबंधित प्रश्‍न

When a ray of light enters from one medium to another having different optical densities it bends. Why does this phenomenon occur?


Draw a labelled ray diagram to show how a ray of light passes through a parallel-sided glass block if it hits the glass block at 90° (that is, perpendicular to the glass block).


State any two uses of convex lenses.


Distinguish between a convex lens and concave lens. Which of the two is a converging lens : convex lens of concave lens?


Describe with the help of a ray-diagram, the formation of image of a finite object placed in front of convex lens between f and 2f. Give two characteristics of the image so formed.


State whether the convex lens has a real focus or a virtual focus.


Three convex lenses are available having focal lengths of 4 cm, 40 cm and 4 m respectively. Which one would you choose as a magnifying glass and why?


In order to obtain a real image twice the size of the object with a convex lens of focal length 15 cm, the object distance should be:

(a) more than 5 cm but less than 10 cm
(b) more than 10 cm but less than 15 cm
(c) more than 15 cm but less than 30 cm
(d) more than 30 cm but less than 60 cm


A beam of parallel light rays is incident through the holes on one side of a box and emerges out through the holes on its opposite side as shown in the diagram below:

Which of the following could be inside the box?


An object is placed 20 cm from (a) a converging lens, and (b) a diverging lens, of focal length 15 cm. Calculate the image position and magnification in each case. 


A lens forms an upright and magnified image of an object State whether the image is real or virtual


i. Which type of microscope has the arrangement of lenses shown in the  adjoining figure?
ii. Label the figure correctly.
iii. Write the working of this microscope.
iv. Where does this microscope used?
v. Suggest a way to increase the efficiency of this microscope.


An object of height 4.0 cm is placed at a distance 24 cm in front of a convex lens of focal length 8 cm. Draw a ray diagram to find the position of image. State the characteristics of the image.

Rewrite the following statement by selecting the correct option:
The power of a convex lens is 2.5 dioptres. Its focal length is ______________.

How will you decide whether a given piece of glass is a concave lens, convex lens, or a plane glass plate?


State the position of object, position of image, nature of image when: Convex lens is used in observing biological specimens.


In sunglasses, both of its surfaces are curved, yet their behaviour is neither like a convex lens nor like a concave lens. State the reason.


A candle is placed between f and 2f a convex lens. Draw a ray diagram showing the position of the image.


Can one bum a piece of paper in daylight by just using a convex lens instead of a match or any direct flame? Support your answer with the help of an appropriate ray diagram.


Distinguish between:

Concave lens and Convex Lens


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