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Obtain the temperature ranges for ultrav...

Obtain the temperature ranges for ultraviolet part of radiation of electromagnetic waves. Use the formula,`lambda_m T=2.9xx10^(-3)m`.K. Take frequency ranges for ultra violet part of radiation is `8xx10^14` Hz to `5xx10^17` Hz

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`7.73xx10^3` K to `4.83xx10^6` K
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