Major Competitive Exams

Download Q&A
Q. The energy stored in a capacitor is directly proportional to which of the following? (2023)
  • A. Charge
  • B. Voltage
  • C. Capacitance
  • D. All of the above
Q. The energy stored in a capacitor is given by which of the following formulas? (2021)
  • A. 1/2 CV^2
  • B. CV
  • C. Q/V
  • D. 1/2 QV
Q. The energy stored in an object due to its position is called _____. (2019)
  • A. Kinetic energy
  • B. Potential energy
  • C. Thermal energy
  • D. Chemical energy
Q. The enthalpy change for a reaction can be calculated using which of the following?
  • A. Bond energies
  • B. Standard enthalpies of formation
  • C. Calorimetry
  • D. All of the above
Q. The enthalpy change for the reaction A + B → C is +50 kJ/mol. What can be said about the reaction?
  • A. It is exothermic
  • B. It is endothermic
  • C. It is spontaneous
  • D. It is at equilibrium
Q. The enthalpy of vaporization of a substance is defined as:
  • A. The heat required to melt the substance
  • B. The heat required to convert a liquid into a gas
  • C. The heat released during condensation
  • D. The heat required to raise the temperature of a substance
Q. The enthalpy of vaporization of water is approximately ____ kJ/mol.
  • A. 40.79
  • B. 60.79
  • C. 80.79
  • D. 100.79
Q. The enthalpy of vaporization of water is approximately:
  • A. 40.79 kJ/mol
  • B. 2260 kJ/mol
  • C. 100 kJ/mol
  • D. 60 kJ/mol
Q. The entropy change for a phase transition at constant temperature is given by:
  • A. ΔS = ΔH/T
  • B. ΔS = T/ΔH
  • C. ΔS = ΔH*T
  • D. ΔS = ΔH + T
Q. The entropy change for a reaction can be calculated using which of the following?
  • A. ΔS = ΣS(products) - ΣS(reactants)
  • B. ΔS = ΣS(reactants) - ΣS(products)
  • C. ΔS = Q/T
  • D. ΔS = W/T
Q. The entropy of a perfect crystal at absolute zero is given by:
  • A. R
  • B. 0
  • C.
  • D. 1
Q. The entropy of a perfect crystal at absolute zero is:
  • A. Maximum
  • B. Minimum
  • C. Undefined
  • D. Infinite
Q. The entropy of a perfect crystal at absolute zero temperature is given by which law?
  • A. Third law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Zeroth law of thermodynamics
Q. The entropy of a perfect crystal at absolute zero temperature is given by:
  • A. 0
  • B. 1
  • C. Infinity
  • D. Depends on the substance
Q. The entropy of a perfect crystalline substance at absolute zero is given by which law?
  • A. Third law of thermodynamics
  • B. First law of thermodynamics
  • C. Second law of thermodynamics
  • D. Zeroth law of thermodynamics
Q. The entropy of a perfect crystalline substance at absolute zero is given by: (2021)
  • A. 0 J/K
  • B. 1 J/K
  • C. 2 J/K
  • D. Depends on the substance
Q. The entropy of a perfect crystalline substance at absolute zero is:
  • A. Zero
  • B. Maximum
  • C. Undefined
  • D. Infinite
Q. The equation of a line parallel to y = 2x + 3 and passing through (1, 1) is?
  • A. y = 2x - 1
  • B. y = 2x + 1
  • C. y = 2x + 3
  • D. y = 2x - 3
Q. The equation of a line passing through (1, 2) and (3, 6) is:
  • A. y = 2x
  • B. y = 3x - 1
  • C. y = x + 1
  • D. y = 4x - 2
Q. The equation of a line passing through the points (1, 2) and (3, 6) is:
  • A. y = 2x
  • B. y = 3x - 1
  • C. y = x + 1
  • D. y = 4x - 2
Q. The equation of a line with slope 2 passing through the point (1, 3) is?
  • A. y = 2x + 1
  • B. y = 2x + 2
  • C. y = 2x + 3
  • D. y = 2x - 1
Q. The equation of a parabola is given by x^2 = 16y. What is the length of the latus rectum?
  • A. 4
  • B. 8
  • C. 16
  • D. 32
Q. The equation of a parabola with vertex at (0, 0) and focus at (0, 3) is?
  • A. x^2 = 12y
  • B. y^2 = 12x
  • C. x^2 = 6y
  • D. y^2 = 6x
Q. The equation of an ellipse is given by 4x^2 + 9y^2 = 36. What is the eccentricity of the ellipse?
  • A. 0.5
  • B. 0.6
  • C. 0.7
  • D. 0.8
Q. The equation of an ellipse with foci at (0, ±c) and major axis along the y-axis is given by?
  • A. x^2/a^2 + y^2/b^2 = 1
  • B. y^2/a^2 + x^2/b^2 = 1
  • C. x^2/b^2 + y^2/a^2 = 1
  • D. y^2/b^2 + x^2/a^2 = 1
Q. The equation of motion for a simple harmonic oscillator is given by x(t) = A cos(ωt + φ). What does φ represent?
  • A. Amplitude
  • B. Phase constant
  • C. Angular frequency
  • D. Time period
Q. The equation of motion for a simple harmonic oscillator is given by x(t) = A cos(ωt + φ). What does A represent?
  • A. Angular frequency
  • B. Phase constant
  • C. Amplitude
  • D. Displacement
Q. The equation of state for an ideal gas is given by: (2022)
  • A. PV = nRT
  • B. PV = NkT
  • C. PV = mRT
  • D. PV = kT
Q. The equation of the directrix of the parabola y^2 = 8x is?
  • A. x = -2
  • B. x = 2
  • C. y = -4
  • D. y = 4
Q. The equation of the line passing through (1, 2) and (3, 6) is:
  • A. y = 2x
  • B. y = 3x - 1
  • C. y = x + 1
  • D. y = 4x - 2
Showing 9091 to 9120 of 19340 (645 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely