Test - Elemente de fizică cuantică - cl. 12
Quiz
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
Ioja Angela
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lucrul mecanic de extracţie:
(1 punct)
depinde de tensiunea de accelerare
are aceeaşi valoare pentru toate substanţele
reprezintă lucrul mecanic necesar extragerii electronilor din substanţă
reprezintă lucrul mecanic necesar extragerii fotoelectronilor din substanţă.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Expresia pentru lungimea de undă Compton este următoarea:
(1 punct)
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Relaţia pentru impulsul fotonului este:
(1 punct)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În orice undă luminoasă de frecvenţă , energia este concentrată în corpusculii de lumină, numiți fotoni, a căror energie este dată de valoarea:
(1 punct)
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Adevărat sau Fals?
Lumina are caracter dual, de corpuscul și de undă.
(0,5 puncte)
Adevărat
Fals
6.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Relația reprezintă:
(1 punct)
7.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Emisia de fotoelectroni are loc numai dacă frecvența radiației incidente este mai mare decât o frecvență minimă numită ...................................
(1 punct)
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