Medical Entrance

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Q. The Hardy-Weinberg principle describes the genetic equilibrium in a population. Which of the following is NOT a condition for this equilibrium? (1908)
  • A. No mutations
  • B. Random mating
  • C. Natural selection
  • D. Large population size
Q. The heat capacity at constant volume (Cv) for an ideal gas is related to which of the following? (2023)
  • A. Change in internal energy
  • B. Change in enthalpy
  • C. Change in entropy
  • D. Change in Gibbs free energy
Q. The heat capacity at constant volume (Cv) is defined as: (2022)
  • A. The amount of heat required to raise the temperature of a substance by 1°C at constant pressure.
  • B. The amount of heat required to raise the temperature of a substance by 1°C at constant volume.
  • C. The total heat content of a substance.
  • D. The heat required to change the phase of a substance.
Q. The heat capacity at constant volume is defined as: (2023)
  • A. C_v = dQ/dT at constant pressure
  • B. C_v = dQ/dT at constant volume
  • C. C_v = dW/dT at constant volume
  • D. C_v = dQ/dP at constant volume
Q. The heat capacity of a substance is defined as: (2023)
  • A. The amount of heat required to raise the temperature of one gram by one degree Celsius.
  • B. The amount of heat required to raise the temperature of one mole by one degree Celsius.
  • C. The total heat content of the substance.
  • D. The heat required to change the state of the substance.
Q. The image formed by a concave mirror when the object is placed between the focal point and the mirror is: (2022)
  • A. Real and inverted
  • B. Virtual and erect
  • C. Real and erect
  • D. Virtual and inverted
Q. The impedance of an RLC circuit is given by which of the following formulas? (2022)
  • A. Z = R + jX
  • B. Z = √(R² + (X_L - X_C)²)
  • C. Z = R + X_L + X_C
  • D. Z = R - jX
Q. The impedance of an RLC circuit is minimum when which condition is satisfied? (2022)
  • A. XL = XC
  • B. R = 0
  • C. R = XL
  • D. R = XC
Q. The law that relates the pressure and volume of a gas at constant temperature is known as: (2019)
  • A. Charles's Law
  • B. Avogadro's Law
  • C. Boyle's Law
  • D. Ideal Gas Law
Q. The law that relates the volume of a gas to its temperature at constant pressure is known as: (2018)
  • A. Boyle's Law
  • B. Charles's Law
  • C. Avogadro's Law
  • D. Graham's Law
Q. The magnetic field due to a straight current-carrying conductor at a distance r is given by which formula? (2022)
  • A. B = μ₀I/2πr
  • B. B = μ₀I/r
  • C. B = μ₀I/4πr²
  • D. B = μ₀I/2r
Q. The magnetic field due to a straight current-carrying conductor at a distance r from the wire is given by which formula? (2019)
  • A. B = μ₀I/(2πr)
  • B. B = μ₀I/(4πr²)
  • C. B = μ₀I/(2r)
  • D. B = μ₀I/(πr)
Q. The magnetic field inside a long solenoid is given by which of the following expressions? (2020)
  • A. μ₀nI
  • B. μ₀I/n
  • C. nI/μ₀
  • D. I/μ₀n
Q. The magnetic field lines around a straight current-carrying conductor are in which shape? (2022)
  • A. Straight lines
  • B. Concentric circles
  • C. Ellipses
  • D. Spirals
Q. The magnetic field lines around a straight current-carrying conductor are: (2022)
  • A. Straight lines
  • B. Concentric circles
  • C. Elliptical
  • D. Random
Q. The magnetic field lines inside a bar magnet are directed from: (2019)
  • A. North to South
  • B. South to North
  • C. East to West
  • D. West to East
Q. The maximum displacement from the mean position in simple harmonic motion is called: (2019)
  • A. Amplitude
  • B. Frequency
  • C. Wavelength
  • D. Period
Q. The maximum speed of a simple harmonic oscillator is 4 m/s. If the amplitude is 2 m, what is the angular frequency? (2019)
  • A. 2 rad/s
  • B. 4 rad/s
  • C. 1 rad/s
  • D. 8 rad/s
Q. The part of the flower that receives pollen is called the: (2022)
  • A. Ovary
  • B. Stigma
  • C. Style
  • D. Anther
Q. The phenomenon of electromagnetic induction was discovered by which scientist? (2022)
  • A. Michael Faraday
  • B. James Clerk Maxwell
  • C. Nikola Tesla
  • D. Albert Einstein
Q. The potential energy stored in a capacitor is directly proportional to which of the following? (2023)
  • A. Charge and Voltage
  • B. Charge only
  • C. Voltage only
  • D. Capacitance only
Q. The potential energy stored in a capacitor is given by which of the following formulas? (2020)
  • A. 1/2 CV^2
  • B. CV
  • C. Q^2/2C
  • D. 1/2 QV
Q. The pressure of a gas is inversely proportional to its volume at constant temperature is known as: (2022)
  • A. Charles's Law
  • B. Boyle's Law
  • C. Avogadro's Law
  • D. Ideal Gas Law
Q. The pressure of an ideal gas is directly proportional to its temperature when: (2022)
  • A. Volume is constant
  • B. Number of moles is constant
  • C. Both volume and number of moles are constant
  • D. None of the above
Q. The pressure of an ideal gas is inversely proportional to its volume at constant temperature. This relationship is known as: (2022)
  • A. Charles's Law
  • B. Boyle's Law
  • C. Avogadro's Law
  • D. Ideal Gas Law
Q. The rate of a reaction is defined as the change in concentration of a reactant or product per unit time. What is the general form of the rate equation? (2023)
  • A. Rate = k[A]^n
  • B. Rate = k[A][B]
  • C. Rate = k[A]^2[B]
  • D. Rate = k[A] + [B]
Q. The rate of a reaction is directly proportional to the concentration of one reactant raised to the power of 2. What is the order of the reaction? (2022)
  • A. Zero order
  • B. First order
  • C. Second order
  • D. Third order
Q. The rate of a reaction is directly proportional to the product of the concentrations of the reactants raised to their respective powers. This statement defines:
  • A. Rate law
  • B. Equilibrium constant
  • C. Reaction quotient
  • D. Catalytic efficiency
Q. The rate of a reaction is directly proportional to the product of the concentrations of the reactants raised to their respective powers. This statement defines which law?
  • A. Law of conservation of mass
  • B. Rate law
  • C. Le Chatelier's principle
  • D. Gibbs free energy
Q. The rate of a reaction is given by the equation rate = k[A]^2[B]. What is the overall order of the reaction? (2020)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
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