the frequency f of an Electromagnetic wave is inversely proportional to the length l of the wave . using K for the constant of variation
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A precaution is an action taken in advance to prevent something negative from happening or to lessen the impact of the negative thing if it does happen. This sense of precaution is often used with the verb take, as in take precautions or take every precaution.
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ɪ ʜᴏᴘᴇ ɪᴛ ɪꜱ ʜᴇʟᴘꜰᴜʟ ꜰᴏʀ ʏᴏᴜ
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