High-frequency question types (1–2 questions every exam cycle):
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Pattern 1 — Dimensional formula identification: Given a list of physical quantities, identify which pair shares the same dimensional formula. Most common trick: torque and energy both [M^{1}$$L^{2}$$T^{-2}]; pressure and stress and energy density all [M^{1}$$L^{-1}$$T^{-2}]. Memorise all five quantities that share [M^{1}$$L^{-1}$$T^{-2}] as a cluster.
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Pattern 2 — Percentage error in derived formula: Given Z = Aᵃ × Bᵇ / Cᶜ with individual percentage errors, find % error in Z. Method: write % error = a(%A) + b(%B) + c(%C). Never subtract. The trap: students subtract for division. The test frequently gives answer choices that differ only in whether they added or subtracted.
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Pattern 3 — Significant figures counting: Given numbers like 0.0046 (2 sig figs), 1.500 (4 sig figs), (3 sig figs). Trap: counting leading zeros. Trick: write in scientific notation and count digits in the coefficient.
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Pattern 4 — Limitation of dimensional analysis: NEET asks whether a given formula can be verified/derived by dimensional analysis. If the formula contains a dimensionless constant (like 2π, 1/2, or a pure ratio), dimensional analysis cannot determine its value.
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Pattern 5 — Unit conversion using dimensional method: Convert a known value (like G) from SI to CGS or vice versa. Trap: applying conversion factor to only one base unit. Always apply to all base units with their respective powers.
Time allocation for ME-01 in NEET: Average 1–2 questions; allocate 1.5 minutes each. These questions have definite correct answers with no partial credit — avoid guessing and use elimination.