MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
D. Property of matter and radiation
Explanation
Property of matter and radiation is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 4f
Explanation
4f is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. force
Explanation
force is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 5 cm
Explanation
5 cm is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. aluminium
Explanation
aluminium is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Acoustics
Explanation
Acoustics is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Hardness
Explanation
The Mohs Hardness Scale is used as a convenient way to help identify minerals. A mineral’s hardness is a measure of its relative resistance to scratching, measured by scratching the mineral against another substance of known hardness on the Mohs Hardness Scale.
Correct answer
C. twice
Explanation
twice is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 6.25 × 10 12 electrons
Explanation
6.25 × 10 12 electrons is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. 2 volt
Explanation
2 volt is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.