Undergraduate

Q. In a simple harmonic motion, the maximum velocity occurs at which point? (2019)
  • A. At the mean position
  • B. At the extreme position
  • C. At half the amplitude
  • D. At the equilibrium position
Q. In a simple harmonic oscillator, if the mass is increased, what happens to the time period? (2019)
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Depends on amplitude
Q. In a test cross, an individual of unknown genotype is crossed with which of the following? (2021)
  • A. Homozygous dominant
  • B. Heterozygous
  • C. Homozygous recessive
  • D. Any individual
Q. In a test cross, an individual with a dominant phenotype is crossed with which of the following? (2021)
  • A. Homozygous dominant
  • B. Homozygous recessive
  • C. Heterozygous
  • D. None of the above
Q. In a test cross, an individual with an unknown genotype is crossed with which of the following? (2023)
  • A. Homozygous dominant
  • B. Heterozygous
  • C. Homozygous recessive
  • D. Any individual
Q. In a thin film interference experiment, what type of interference occurs when light reflects off a denser medium? (2023)
  • A. Constructive interference
  • B. Destructive interference
  • C. No interference
  • D. Total internal reflection
Q. In a thin film of air between two glass plates, which of the following colors will be least affected by interference? (2022)
  • A. Red
  • B. Green
  • C. Blue
  • D. Violet
Q. In a thin film of oil on water, what color will be seen if the film thickness is such that destructive interference occurs for blue light? (2021)
  • A. Red
  • B. Green
  • C. Blue
  • D. Yellow
Q. In a thin film of oil on water, which color of light is most likely to be reflected? (2022)
  • A. Red
  • B. Blue
  • C. Green
  • D. Yellow
Q. In a thin film of oil on water, which color will appear at the center of the pattern if the film is viewed in white light? (2022)
  • A. Red
  • B. Blue
  • C. Green
  • D. Yellow
Q. In a transformer, if the primary coil has 100 turns and the secondary coil has 200 turns, what is the turns ratio? (2021)
  • A. 1:2
  • B. 2:1
  • C. 1:1
  • D. 3:1
Q. In a transformer, if the primary coil has 100 turns and the secondary coil has 50 turns, what is the turns ratio? (2023)
  • A. 2:1
  • B. 1:2
  • C. 1:1
  • D. 3:1
Q. In a transformer, if the primary coil has more turns than the secondary coil, what type of transformer is it? (2021)
  • A. Step-up transformer
  • B. Step-down transformer
  • C. Isolation transformer
  • D. Auto transformer
Q. In a vacuum, which of the following travels the fastest?
  • A. Sound
  • B. Light
  • C. Water waves
  • D. Radio waves
Q. In a zero-order reaction, the rate of reaction is independent of the concentration of the reactants. What is the unit of the rate constant (k) for a zero-order reaction? (2023)
  • A. mol/L·s
  • B. L^2/mol·s
  • C. mol/L
  • D. s^-1
Q. In a zero-order reaction, the rate of reaction is independent of which of the following? (2023) 2023
  • A. Concentration of reactants
  • B. Temperature
  • C. Presence of a catalyst
  • D. All of the above
Q. In an AC circuit, if the current lags the voltage by 30 degrees, what is the power factor? (2023)
  • A. 0.866
  • B. 0.5
  • C. 1
  • D. 0.707
Q. In an AC circuit, if the frequency is 60Hz and the inductance is 0.2H, what is the inductive reactance? (2021)
  • A. 12.56Ω
  • B. 37.68Ω
  • C. 75.36Ω
  • D. 100Ω
Q. In an AC circuit, if the frequency is increased, what happens to the inductive reactance? (2020)
  • A. It increases
  • B. It decreases
  • C. It remains constant
  • D. It becomes zero
Q. In an AC circuit, if the power factor is 0.8, what is the angle between the voltage and current? (2020)
  • A. 36.87°
  • B. 53.13°
  • C. 60°
  • D. 45°
Q. In an AC circuit, if the resistance is 10 ohms and the inductive reactance is 20 ohms, what is the total impedance? (2020)
  • A. 10 ohms
  • B. 20 ohms
  • C. √(10² + 20²)
  • D. 30 ohms
Q. In an AC circuit, if the resistance is 10 ohms and the inductive reactance is 20 ohms, what is the impedance? (2020)
  • A. 10 ohms
  • B. 20 ohms
  • C. √(10² + 20²)
  • D. 30 ohms
Q. In an AC circuit, if the resistance is 10Ω and the inductive reactance is 20Ω, what is the total impedance? (2020)
  • A. 10Ω
  • B. 20Ω
  • C. √(10² + 20²)
  • D. 30Ω
Q. In an AC circuit, if the voltage is 120 V and the current is 10 A with a power factor of 0.8, what is the real power consumed? (2021)
  • A. 960 W
  • B. 1200 W
  • C. 800 W
  • D. 1000 W
Q. In an AC circuit, if the voltage is 120V and the current is 10A with a power factor of 0.8, what is the real power consumed? (2021)
  • A. 120W
  • B. 800W
  • C. 960W
  • D. 1000W
Q. In an AC circuit, if the voltage is 120V and the current is 10A, what is the power factor if the real power is 600W? (2022)
  • A. 0.5
  • B. 0.6
  • C. 0.8
  • D. 1.0
Q. In an AC circuit, if the voltage is given by V(t) = 100 sin(100t), what is the RMS voltage? (2023)
  • A. 100 V
  • B. 70.7 V
  • C. 50 V
  • D. 141.4 V
Q. In an AC circuit, if the voltage is given by V(t) = 100√2 sin(1000t), what is the peak voltage? (2023)
  • A. 100 V
  • B. 100√2 V
  • C. 200 V
  • D. 50 V
Q. In an AC circuit, if the voltage is given by V(t) = V0 sin(ωt), what is the expression for the current if the circuit is purely inductive? (2023)
  • A. I(t) = I0 sin(ωt)
  • B. I(t) = I0 sin(ωt - π/2)
  • C. I(t) = I0 cos(ωt)
  • D. I(t) = I0 cos(ωt + π/2)
Q. In an AC circuit, if the voltage is V(t) = 120 sin(ωt), what is the RMS voltage? (2017)
  • A. 120 V
  • B. 60 V
  • C. 84.85 V
  • D. 100 V
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