Physicshard · Past Paper
In a displacement method, the two magnifications of an object are 4 and 0.25. The size of the object is:
A1
BSquare root of (4 * 0.25)
C2
D0.5
✓ Correct Answer: B — Square root of (4 * 0.25)
In the displacement method, object size O = sqrt(I1 * I2). Since m = I/O, O = sqrt(m1 * m2) is not strictly correct, but the principle is O = sqrt(I1*I2). If I1=4 and I2=0.25, O=1.
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