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Question

ইনফ্রারেড আলোর তরঙ্গ দৈর্ঘ্য কত?

380 nm - 780 nm

1000

μ m

- 100 cm

0.78

μ m

- 100

μ m

0.0005 nm - 0.10 nm

ANS : 3

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