Question 9
Question 9 of 40
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Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
4. Electricity and magnet...
4.2.4. Resistance

Recall and use, for a wire, the direct proportionality between resistance and length, and the inverse proportionality between resistance and cross-sectional area

1. Motion, forces and ene...
1.5.3. Elastic deformation

Define and use the term 'limit of proportionality' for a load–extension graph and identify this point on the graph (an understanding of the elastic limit is not required)

3. Waves
3.2.3. Thin lenses

Define linear magnification as the ratio of image length to object length; recall and use the equation linear magnification = image length / object length