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Q. In a series RLC circuit, what happens to the impedance at resonance? (2021)
  • A. Minimum
  • B. Maximum
  • C. Zero
  • D. Infinite
Q. In a series RLC circuit, what happens to the total impedance when the circuit is at resonance? (2022)
  • A. It is minimum
  • B. It is maximum
  • C. It is equal to R
  • D. It is equal to L
Q. In a simple cubic lattice, how many atoms are present in one unit cell? (2019)
  • A. 1
  • B. 2
  • C. 4
  • D. 8
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 doubled, what happens to the time period? (2022)
  • A. It remains the same
  • B. It doubles
  • C. It increases by √2
  • D. It decreases by √2
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 standing wave, what are the points called where there is no displacement? (2020)
  • A. Nodes
  • B. Antinodes
  • C. Crests
  • D. Troughs
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 interference, if the film is viewed in white light, which color will be seen at the center of the film? (2022)
  • A. Red
  • B. Blue
  • C. Green
  • D. Yellow
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 thickness is such that it causes constructive interference for red light? (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 thin film of oil on water, which color will appear at the center of the pattern if the film thickness is such that it causes constructive interference for blue light? (2022)
  • A. Red
  • B. Green
  • C. Blue
  • D. Yellow
Q. In a thin film of oil on water, which color will appear at the center of the pattern if the film thickness is such that it causes destructive interference for red light? (2022)
  • A. Blue
  • B. Green
  • C. Yellow
  • D. Red
Q. In a thin film of soap, which color appears at the center of the pattern due to destructive interference? (2023)
  • 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 uniform magnetic field, a charged particle moves in a circular path. What is the relationship between the radius of the path and the speed of the particle? (2022)
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relation
  • D. Quadratic relation
Q. In a uniform magnetic field, the magnetic force on a current-carrying conductor is maximum when the angle between the conductor and the field is: (2019)
  • A. 0 degrees
  • B. 90 degrees
  • C. 45 degrees
  • D. 180 degrees
Q. In a vacuum, which of the following travels the fastest?
  • A. Sound
  • B. Light
  • C. Water waves
  • D. Radio waves
Q. In a Zener diode, what is the purpose of the reverse breakdown region? (2020)
  • A. To increase voltage
  • B. To regulate voltage
  • C. To decrease current
  • D. To store energy
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 is given by I(t) = I0 cos(ωt), what is the RMS current? (2021)
  • A. I0/√2
  • B. I0
  • C. 2I0
  • D. I0/2
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