WBJEE JELET 2025 – Full Syllabus Mock Test 3
✅ Total Questions: 50
🔢 4 Options per question with answers
📘 Covers: Physics, Chemistry, Mathematics, EEE
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📘 Mock Test 3 – WBJEE JELET 2025
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1. Which of the following has the highest density?
A. Water
B. Iron
C. Air
D. Mercury
Answer: D
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2. If a wire’s length is doubled, its resistance becomes:
A. Half
B. Double
C. Same
D. Four times
Answer: B
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3. The charge of 1 electron is:
A. C
B. C
C. C
D. C
Answer: A
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4. The chemical formula of quicklime is:
A. Ca(OH)₂
B. CaCO₃
C. CaO
D. CaCl₂
Answer: C
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5. Derivative of :
A.
B.
C.
D.
Answer: A
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6. Unit of inductance:
A. Ohm
B. Farad
C. Henry
D. Tesla
Answer: C
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7. The molar mass of NaCl is:
A. 58.5 g/mol
B. 40 g/mol
C. 60 g/mol
D. 35.5 g/mol
Answer: A
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8. RMS value of sine wave is:
A.
B.
C.
D.
Answer: B
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9. Total internal reflection occurs when light moves from:
A. Air to glass
B. Glass to water
C. Water to glass
D. Glass to air
Answer: D
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10. NAND gate is equivalent to:
A. AND + NOT
B. OR + NOT
C. XOR + NOT
D. NOR + NOT
Answer: A
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11. The slope of a velocity-time graph gives:
A. Distance
B. Acceleration
C. Speed
D. Displacement
Answer: B
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12. The valency of carbon is:
A. 1
B. 2
C. 4
D. 6
Answer: C
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13. Maximum number of electrons in L shell:
A. 2
B. 8
C. 18
D. 32
Answer: B
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14. 1 calorie = ? joules
A. 4.2
B. 1
C. 0.42
D. 42
Answer: A
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15. Boolean expression for OR gate:
A. A + B
B. AB
C. A̅
D. A ⊕ B
Answer: A
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16. Diode is used for:
A. Amplification
B. Rectification
C. Modulation
D. Oscillation
Answer: B
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17. What is the value of ?
A. 0
B. 1
C. -1
D. Infinity
Answer: A
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18. Most abundant gas in atmosphere:
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
Answer: C
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19. Full wave rectifier converts:
A. DC to AC
B. AC to DC
C. DC to DC
D. AC to AC
Answer: B
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20. Resistance of an ideal ammeter is:
A. High
B. Low
C. Infinite
D. Zero
Answer: D
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21. Chemical formula of washing soda:
A. NaOH
B. Na₂CO₃
C. NaHCO₃
D. NaCl
Answer: B
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22. LDR stands for:
A. Light Dimmer Resistor
B. Light Dependent Resistor
C. Long Distance Resistor
D. Line Dependent Relay
Answer: B
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23. Power in AC circuit:
A. VI
B.
C.
D.
Answer: B
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24. If , trace of A = ?
A. 5
B. 4
C. 3
D. 0
Answer: A
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25. Which gas is evolved when Zn reacts with dilute HCl?
A. O₂
B. CO₂
C. H₂
D. Cl₂
Answer: C
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26. Equation of straight line:
A.
B.
C.
D.
Answer: A
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27. Kirchhoff’s Voltage Law is based on:
A. Charge conservation
B. Mass conservation
C. Energy conservation
D. Momentum conservation
Answer: C
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28. Angle between two perpendicular vectors:
A. 0°
B. 90°
C. 180°
D. 45°
Answer: B
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29. Which is a linear polymer?
A. PVC
B. Nylon-6
C. Bakelite
D. Teflon
Answer: A
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30. The value of :
A.
B. 0.5
C. 1
D. 0
Answer: B
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31. Coulomb is the SI unit of:
A. Force
B. Charge
C. Current
D. Energy
Answer: B
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32. The decimal of binary 1001:
A. 5
B. 8
C. 9
D. 12
Answer: C
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33. One farad equals:
A. 1 C/V
B. 1 V/C
C. 1 A/V
D. 1 W/V
Answer: A
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34. Chemical used in dry cells:
A. Sulphuric acid
B. Zinc chloride
C. Hydrochloric acid
D. Nitric acid
Answer: B
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35. XOR gate gives 1 when:
A. Inputs are same
B. Inputs differ
C. Inputs are zero
D. All above
Answer: B
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36. Phase difference in resistor:
A. 0°
B. 90°
C. 180°
D. 270°
Answer: A
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37. Product of voltage and current is:
A. Resistance
B. Power
C. Energy
D. Work
Answer: B
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38. First law of thermodynamics:
A. Heat = Work
B.
C. Heat is absorbed
D. Entropy constant
Answer: B
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39. What is meant by doping?
A. Adding impurities
B. Removing electrons
C. Applying voltage
D. Mixing water
Answer: A
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40. Logarithmic base of natural log:
A. 2
B. 10
C.
D. 1
Answer: C
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41. Unit of electric field:
A. N
B. N/C
C. C/N
D. W
Answer: B
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42. If determinant of a matrix is zero, matrix is:
A. Singular
B. Diagonal
C. Scalar
D. Orthogonal
Answer: A
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43. Capacitance depends on:
A. Area & distance
B. Voltage
C. Resistance
D. Temperature
Answer: A
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44. Diode conducts in:
A. Reverse bias
B. Both directions
C. Forward bias
D. Never
Answer: C
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45. Which gate is called universal gate?
A. AND
B. OR
C. NAND
D. XOR
Answer: C
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46. What type of system is transformer?
A. Electrochemical
B. Static
C. Dynamic
D. Thermal
Answer: B
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47. Maximum power in circuit when:
A. Load < source
B. Load = source
C. Load > source
D. Load = 0
Answer: B
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48. Divergence of magnetic field is:
A. Zero
B. Infinity
C. One
D. Constant
Answer: A
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49. Power factor of pure inductive circuit:
A. 1
B. 0
C. 0.5
D. 0.707
Answer: B
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50. Output of NOT gate when input is 1:
A. 0
B. 1
C. 2
D. Undefined
Answer: A
