TS EAMCET 6-Aug-2021 Shift 2 Question Paper

Section: Physics

Question : 118 of 160

Marks: +1, -0

What is the maximum wavelength of electromagnetic radiation that create a electron-hole pair in material with band gap 0.7 eV? Planck's constant 4.136×10−15 eV-Sec, velocity of light = 3×108 m/s

1773×10−8 m
1773×10−9 m
1873×10−9 m
1873×10−8 m

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