you understand by conservation of water? How it is useful?
न-18 20 सेमी. फोकस दूरी के उत्तल लैंस एवं अवतल लैंस दोनों से बनने वाले प्रतिबिम्ब की प्रकृति क्या होगी,
जबकि वस्तु 10 सेमी. की दूरी पर रखी हो?
[2+2+2=6]
What will be the nature of the image formed from both a convex lens and a concave
lens of 20 centimeter focus distance, when the object is placed at a distance of
10 centimeters ?
(अथवा)
(OR)
12 सेमी. फोकस दूरी के अवतल दर्पण से बनने वाले प्रतिबिम्ब की स्थिति ज्ञात कीजिए, जबकि वस्तु 20
सेमी. की दूरी पर रखी गई हो। इसकी आवर्धन क्षमता भी ज्ञात कीजिए।
Find the position of the image formed by a concave mirror of 12 centimeters focus
distance, when the object is placed at a distance of 20 centimeters. Also find
magnification.
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