Question
is about 2.7K. rom the figure on page his woul universe as a whole thw vicible of the spectrum of the b, the x-ray ultra-violet part ofthe spectrum. part of the spectrum. 7 The energy barrier that keep conductxer within a metal is called: electrons a The wave h. The warkl unction. The energy gap d. The infinite square well. One cannot see through a sheet oralumimm uminum is opaque to visible light num is transparent lo visible lighl cannot imeract with aluminum None of the abo 9. A key property of a p-n junctian inthemal equilibrium that makes il useful for otonic devices is. that p n junction devices are made only of silicon. the diffusion of electrons and hoks across the junction. c. they are typically fabricated by melting apiece of p-type and n-type d the built-in 0, Aliens near the moon aim a raygun at h and insist we surrender our planet. After consulting the figure on page 2, the human race should Panic, and head for caves, c. Collectively give the stupid aliens an impolite gesture, and wonder how they were able to invent interstellar travel in the first place. Not panic and carry on fCredit will be given for two of the answers.
Explanation / Answer
1)
Low temperature means lower energy. The least energy em radiation is microwave radiation. So option d is correct.
2)
Work function is defined as the minimum amount of energy required for the conduction electrons to escape from the metal surface. So option b is correct.
