At an instant |m|=2. A point object moves at 45° to the principal axis, so its axial and transverse speed components are equal. The ratio |vᵢ, axial|/|vᵢ, transverse| is:
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At an instant |m|=2. A point object moves at 45° to the principal axis, so its axial and transverse speed components are equal. The ratio |vᵢ,axial|/|vᵢ,transverse| is:

G1 Physics · Accepted Answer

Axial amplification is |m|²=4 while transverse amplification is |m|=2. With equal input components, the ratio is 4/2=2.