मुफ्त कृष्णिका शिखर कैलकुलेटर
कृष्णिका विकिरण की शिखर तरंगदैर्ध्य निकालें। वीन के नियम से तापमान पर शिखर जानें।
शिखर तरंगदैर्ध्य
0.00000050 m
Peak Wavelength vs Temperature
सूत्र
Wien's Displacement Law
Wien's law states that the peak emission wavelength of a black body is inversely proportional to its temperature.
Formula
lambda_max = b / T
where b = 2.8978 x 10^-3 m·K is Wien's displacement constant. Hotter objects peak at shorter wavelengths (bluer light).
हल किया गया उदाहरण
The Sun's surface temperature (~5778 K).
- 01lambda_max = b / T
- 02lambda_max = 2.8978e-3 / 5778
- 03lambda_max = 5.015e-7 m
- 04lambda_max = 501.5 nm (green-yellow visible light)
अक्सर पूछे जाने वाले प्रश्न
Why does the Sun appear yellow-white if it peaks in green?
The Sun emits broadly across the visible spectrum. Our eyes and atmosphere combine to make it appear yellow-white rather than green.
What color are the hottest stars?
Blue. Very hot stars (>30,000 K) peak in the ultraviolet and appear blue-white. Cool stars (~3000 K) peak in infrared and appear red.
How is Wien's law used in astronomy?
By measuring the peak wavelength of a star's spectrum, astronomers can determine its surface temperature without visiting it.
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