6 सेमी व्यास की एक वस्तु को +5.0 D की क्षमता वाले लेंस के सामने 10 सेमी की दूरी पर रखा जाता है। वस्तु के प्रतिबिंब का व्यास होगा:

This question was previously asked in
RRB Group D 17 Sept 2022 Shift 3 Official Paper
View all RRB Group D Papers >
  1. 12 सेमी 
  2. 10 सेमी 
  3. 8 सेमी 
  4. 14 सेमी 

Answer (Detailed Solution Below)

Option 1 : 12 सेमी 
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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सही उत्तर विकल्प 1)12सेमी है

दिया गया:

 एक लेंस की जिसकी शक्ति +5.0 D है।

सूत्र:

लेंस की शक्ति: 

लेंस सूत्र: 

गणना:

हम जानते हैं कि, लेंस का आवर्धन:

इसलिए, छवि का व्यास 12 सेमी है।

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