CBSE Class 10 Science 2021 Term 1 Solved Paper

Question : 18 of 60

Marks: +1, -0

A student wants to obtain magnified image of an object

A B

as on a screen. Which one of the following arrangements shows the correct position of

A B

for him/her to be successful?

Solution:

Image formation by Convex Lens

Objectlocation	Imageformed	Image nature	Imagesize
Infinity	At $F_2$	Real and Inverted	Highly diminished
Beyond $2 {\F}_1$	Between $2 {\F}_2 \;\text " and "\; {\F}_2$	Real and Inverted	Diminished
At $2 F_1$	At $2 F_2$	Real and Inverted	Same size
Between $2 {\F}_1 \;\text " and "\; {\F}_1$	Beyond $2 {\F}_2$	Real and Inverted	Enlarged
At $F_1$	At infinity	Real and Inverted	Enlarged
Between ${\F}_1$ and ${\O}$	On the same side as the object	Virtual and Erect	Enlarged

So in the question, it is given that student wanted to obtain a magnified image on the screen that means he wants a real magnified image of an object. So we get real magnified image of an object when the object is placed between

{\C} (2 {\F}_1)

and

{\F}_1

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