Physics, asked by sunnykantsbi, 5 months ago

9. एक वस्तु और एक अवतल दर्पण द्वारा बने वास्तविक प्रतिबिंब से दर्पण के फोकस से दूरियाँ क्रमश: 25 cm और 16 cm
हो, तो दर्पण की फोकस-दूरी होगी
(क) 25cm
(ख) 16cm
(ग) 20cm
(घ) 10cm

Answers

Answered by samanavahora150

0

Answer:

20........ ..............

Explanation:

......................

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