Mathematics · Dual Nature of Radiation Calculations
एक प्रकाश-संवेदी धातु की सतह का कार्य फलन (work function) 3.1 eV है। इस सतह से इलेक्ट्रॉन उत्सर्जित करने के लिए आवश्यक विकिरण की देहली तरंगदैर्ध्य (threshold wavelength) की गणना कीजिए। (hc = 1240 eV·nm लें)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1500 nm
- 2400 nm✓
- 3300 nm
- 4200 nm
सही उत्तर देखें
400 nm
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