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एक से अधिक उत्तर प्रकार के प्रश्न

A concave lens and a convex lens of focal length 25 cm and 20 cm respectively are placed in close contact. The combination of lenses

फोकस दूरी 25 cm तथा 20 cm के क्रमशः एक अवतल लेन्स तथा एक उत्तल लेन्स को निकट सम्पर्क में रखा जाता है। तब

A
Has focal length 100 cm

लेन्सों के संयोजन की फोकस दूरी 100 cm है
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B
Has power 1 D

लेन्सों के संयोजन की क्षमता 1 D है
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C
Will be behave as converging lens

लेन्सों का संयोजन अभिसारी लेन्स के समान व्यवहार करेगा
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D
Will be behave as diverging lens

लेन्सों का संयोजन अपसारी लेन्स के समान व्यवहार करेगा
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Solution

The correct option is C Will be behave as converging lens

लेन्सों का संयोजन अभिसारी लेन्स के समान व्यवहार करेगा
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