661PhysicsMedium
A piece of copper and a piece of germanium are cooled from the room temperature down to 77 K.
A
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Correct answer
D. The resistance of copper decreases and that of germanium increases.
Explanation
The resistance of copper decreases and that of germanium increases. is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. to smooth out the energy variation
Explanation
to smooth out the energy variation is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. remains unchanged
Explanation
remains unchanged is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Zero
Explanation
Zero is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. 144000J
Explanation
144000J is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. – 1.6 × 10 –13 coulomb
Explanation
– 1.6 × 10 –13 coulomb is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Raleigh
Explanation
Raleigh is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Fermi
Explanation
Fermi is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. All positions during SHM
Explanation
All positions during SHM is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Electric charge
Explanation
Electric charge is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.