According to wien's law, how many times hotter is an object whose blackbody emission spectrum peaks in the blue, at a wave length of 450 nm, than a object whose spectrum peaks in the red, at 700 nm? show me your calculations.

1.55 times

Explanation:

Given

First wavelength

Second wavelength

According wien's diplacement law

where

T=Temperature

Let be the temperatures corresponding to respectively.

Thus object with is 1.55 times hotter than object with wavelength

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