alleryAt what temperature does kT equal 1 eV?
A1000 K
B100 K
C300 K
D11600 K (= 1.6e-19 / 1.38e-23 ≈ 11600)
Answer & Solution
Correct answer: D. 11600 K (= 1.6e-19 / 1.38e-23 ≈ 11600)
kT = 1 eV → T = 1.6 × 10⁻¹⁹ / 1.38 × 10⁻²³ ≈ 11600 K. At room T (300 K), kT ≈ 1/40 eV = 0.025 eV.
Keep practising Unit 2A: Newton's Laws and Translational Equilibrium
Browse all Unit 2A: Newton's Laws and Translational Equilibrium questions for AP Physics 1, or explore more Physics topics.
Related questions
A car travels 100 km at 50 km/h, then 100 km at 100 km/h. Average speed:Photon of wavelength 200 nm strikes metal with work function 2 eV. KE of fastest photoelecWork done in stretching wire by 1 mm is W. Work to stretch it by 2 mm (same wire, within eMagnetic flux through a coil changes from 5 mWb to 1 mWb in 0.1 s. Induced EMF:Bohr radius for hydrogen is 0.53 Å. Radius of 3rd orbit:Two coherent sources of intensity I and 4I interfere. Maximum intensity in resulting patteFor a body in SHM with amplitude A, at displacement x, ratio of KE to total energy:Heat capacity of a body is 200 J/K. Heat required to raise its temperature from 20°C to 50