Q. A wheel is rotating with an angular velocity of 10 rad/s. If it accelerates at 2 rad/s², what will be its angular velocity after 5 seconds? (2023)
  • A. 20 rad/s
  • B. 10 rad/s
  • C. 15 rad/s
  • D. 25 rad/s
Q. A wheel of radius R and mass M is rolling without slipping on a horizontal surface. If it has a linear speed v, what is its total kinetic energy? (2022)
  • A. (1/2)Mv²
  • B. (1/2)Mv² + (1/2)(Iω²)
  • C. (1/2)Mv² + (1/2)(Mv²)
  • D. (1/2)Mv² + (1/2)(Mv²/2)
Q. A wire of length L and diameter d is stretched by a force F. If the diameter is halved while keeping the length constant, what happens to the stress in the wire? (2022)
  • A. It doubles
  • B. It quadruples
  • C. It remains the same
  • D. It halves
Q. A wire of length L and diameter d is stretched by a force F. If the diameter is halved, what will be the new elongation for the same force? (2020)
  • A. It will double
  • B. It will quadruple
  • C. It will remain the same
  • D. It will halve
Q. A wire of length L and diameter d is stretched by a force F. If the diameter is halved while keeping the length constant, what happens to the stress? (2020)
  • A. It doubles
  • B. It quadruples
  • C. It halves
  • D. It remains the same
Q. A wire of length L and diameter d is stretched by a force F. What is the expression for the elongation of the wire? (2020)
  • A. (F * L) / (A * Y)
  • B. (F * Y) / (A * L)
  • C. (Y * A) / (F * L)
  • D. (L * d) / (F * Y)
Q. According to Bernoulli's equation, an increase in the speed of a fluid occurs simultaneously with a: (2020)
  • A. Increase in pressure
  • B. Decrease in pressure
  • C. Increase in temperature
  • D. Decrease in density
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in which of the following? (2019)
  • A. Pressure
  • B. Density
  • C. Viscosity
  • D. Temperature
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a: (2020)
  • A. Increase in pressure
  • B. Decrease in pressure
  • C. Increase in temperature
  • D. Decrease in density
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in:
  • A. Pressure
  • B. Temperature
  • C. Density
  • D. Viscosity
Q. According to Bernoulli's principle, what happens to the pressure of a fluid when its velocity increases?
  • A. Pressure increases
  • B. Pressure decreases
  • C. Pressure remains constant
  • D. Pressure fluctuates
Q. An object is at rest on a frictionless surface. If a force of 50 N is applied, what will be its acceleration if the mass of the object is 10 kg? (2022)
  • A. 2 m/s²
  • B. 5 m/s²
  • C. 10 m/s²
  • D. 20 m/s²
Q. An object is dropped from a height of 20 m. What is its potential energy at the top? (2021)
  • A. 200 J
  • B. 400 J
  • C. 600 J
  • D. 800 J
Q. An object is in equilibrium under the action of three forces: 10 N, 15 N, and 20 N. What is the resultant force acting on the object? (2019)
  • A. 0 N
  • B. 5 N
  • C. 10 N
  • D. 15 N
Q. An object moves with a uniform speed of 5 m/s. How far will it travel in 20 seconds? (2023)
  • A. 50 m
  • B. 75 m
  • C. 100 m
  • D. 125 m
Q. An object of mass 8 kg is acted upon by a net force of 32 N. What is the acceleration of the object? (2019)
  • A. 2 m/s²
  • B. 3 m/s²
  • C. 4 m/s²
  • D. 5 m/s²
Q. An object of mass 8 kg is moving with a velocity of 5 m/s. What is its momentum? (2020)
  • A. 20 kg·m/s
  • B. 30 kg·m/s
  • C. 40 kg·m/s
  • D. 50 kg·m/s
Q. Calcium is important for which of the following plant processes? (2020)
  • A. Nutrient transport
  • B. Cell wall stability
  • C. Photosynthesis
  • D. Respiration
Q. Calcium is important for which of the following processes in plants? (2020)
  • A. Nutrient transport
  • B. Cell division
  • C. Photosynthesis
  • D. Respiration
Q. Calcium is primarily involved in which of the following processes? (2020)
  • A. Photosynthesis
  • B. Cell wall stability
  • C. Nutrient transport
  • D. Respiration
Q. Deficiency of which nutrient causes chlorosis in plants? (2022)
  • A. Nitrogen
  • B. Phosphorus
  • C. Potassium
  • D. Calcium
Q. Deficiency of which nutrient causes the 'chlorosis' symptom in plants? (2022)
  • A. Nitrogen
  • B. Phosphorus
  • C. Potassium
  • D. Magnesium
Q. During inhalation, the pressure in the thoracic cavity: (2022)
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Fluctuates
Q. During which phase of mitosis do the chromosomes align at the cell's equatorial plane? (2021)
  • A. Prophase
  • B. Metaphase
  • C. Anaphase
  • D. Telophase
Q. During which phase of respiration does oxygen enter the bloodstream? (2019)
  • A. Inhalation
  • B. Exhalation
  • C. Expiration
  • D. Inspiration
Q. During which phase of respiration does the diaphragm relax? (2023)
  • A. Inhalation
  • B. Exhalation
  • C. Gas exchange
  • D. Oxygen transport
Q. During which phase of the menstrual cycle does ovulation occur? (2020)
  • A. Follicular phase
  • B. Luteal phase
  • C. Menstrual phase
  • D. Ovulatory phase
Q. During which phase of the menstrual cycle does the endometrium thicken? (2020)
  • A. Follicular phase
  • B. Ovulation phase
  • C. Luteal phase
  • D. Menstrual phase
Q. Ethylene is produced in response to which of the following conditions? (2023)
  • A. High light intensity
  • B. Low oxygen levels
  • C. High humidity
  • D. Low temperature
Q. Faraday's law of electromagnetic induction states that the induced EMF in a circuit is proportional to what? (2019)
  • A. Rate of change of current
  • B. Rate of change of magnetic flux
  • C. Rate of change of resistance
  • D. Rate of change of voltage
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