Science, asked by souravkashyap131028, 5 months ago

एक लेंस की फोकस दूरी 20 सेंटीमीटर है यह कौन सा लेंस है उत्तल या अवतल

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Answered by kukusaini74510

3

Answer:

यह एक उत्तल लेंस है जिसकी फोकस दूरी 20 सेंटीमीटर है ।

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