Experimental Skills JEE Main PYQs, 2020 to 2025

JEE Main 2025 · 4 Apr · Shift 2 · Vernier Callipers and Screw Gauge

1. (A) 0.002
2. (B) 0.0025
3. (C) 0.0005
4. (D) 0.001

JEE Main 2024 · 4 Apr · Shift 1 · Optics Experiments

1. (A)$$2 f\left[\frac{\Delta \mathrm{u}}{\mathrm{u}}+\frac{\Delta \mathrm{v}}{\mathrm{v}}\right]$$
2. (B)$$f\left[\frac{\Delta \mathrm{u}}{\mathrm{u}}+\frac{\Delta \mathrm{v}}{\mathrm{v}}\right]$$
3. (C)$$f^2\left[\frac{\Delta \mathrm{u}}{\mathrm{u}^2}+\frac{\Delta \mathrm{v}}{\mathrm{v}^2}\right]$$
4. (D)$\frac{\Delta \mathrm{u}}{\mathrm{u}}+\frac{\Delta \mathrm{v}}{\mathrm{v}}$

JEE Main 2020 · 3 Sep · Shift 2 · p-n Junction Characteristics

1. (A)Multimeter shows NO deflection in both cases i.e. before and after reversing the probes if the chosen component is metal wire.
2. (B)Multimeter shows a deflection, accompanied by a splash of light out of connected component in one direction and NO deflection on reversing the probes if the chosen component is LED.
3. (C)Multimeter shows an equal deflection in both cases i.e. before and after reversing the probes if the chosen component is resistor.
4. (D)Multimeter shows NO deflection in both cases i.e. before and after reversing the probes if the chosen component is capacitor.

JEE Main 2020 · 8 Jan · Shift 2 · Pendulum and g Measurement

1. (A)4.40%
2. (B)3.40%
3. (C)2.40%
4. (D)5.40%