Q. Which of the following describes the motion of a damped oscillator?
A.
Simple harmonic motion
B.
Exponential decay
C.
Linear motion
D.
Circular motion
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Solution
The motion of a damped oscillator is characterized by exponential decay of amplitude over time.
Correct Answer: B — Exponential decay
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Q. Which of the following describes the motion of a system undergoing overdamping?
A.
Returns to equilibrium position quickly
B.
Oscillates with decreasing amplitude
C.
Returns to equilibrium position slowly without oscillating
D.
Oscillates indefinitely
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Solution
In overdamping, the system returns to the equilibrium position slowly without oscillating.
Correct Answer: C — Returns to equilibrium position slowly without oscillating
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Q. Which of the following describes the motion of an object in free fall? (2022)
A.
Constant speed
B.
Accelerated motion
C.
Uniform motion
D.
Cyclic motion
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Solution
An object in free fall experiences accelerated motion due to the force of gravity.
Correct Answer: B — Accelerated motion
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Q. Which of the following describes the polarization of light?
A.
Light waves oscillate in all directions
B.
Light waves oscillate in a single plane
C.
Light waves oscillate in a circular motion
D.
Light waves do not oscillate
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Solution
Polarization of light refers to the phenomenon where light waves oscillate in a single plane.
Correct Answer: B — Light waves oscillate in a single plane
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Q. Which of the following describes the property of a fluid that resists flow? (2020)
A.
Viscosity
B.
Density
C.
Pressure
D.
Surface Tension
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Solution
Viscosity is the measure of a fluid's resistance to flow. Higher viscosity means the fluid flows less easily.
Correct Answer: A — Viscosity
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Q. Which of the following describes the relationship between frequency and pitch?
A.
Higher frequency means lower pitch
B.
Lower frequency means higher pitch
C.
Higher frequency means higher pitch
D.
Frequency has no effect on pitch
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Solution
Higher frequency corresponds to a higher pitch in sound.
Correct Answer: C — Higher frequency means higher pitch
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Q. Which of the following describes the relationship between pressure and volume of a gas at constant temperature?
A.
Charles's Law
B.
Boyle's Law
C.
Avogadro's Law
D.
Ideal Gas Law
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Solution
Boyle's Law states that the pressure of a gas is inversely proportional to its volume at constant temperature.
Correct Answer: B — Boyle's Law
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Q. Which of the following describes the term 'lattice energy'? (2023)
A.
Energy required to vaporize a solid
B.
Energy released when ions form a solid
C.
Energy required to melt a solid
D.
Energy required to break a solid into its constituent atoms
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Solution
Lattice energy is defined as the energy released when gaseous ions combine to form a solid ionic compound.
Correct Answer: B — Energy released when ions form a solid
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Q. Which of the following describes the term 'leading coefficient' in a polynomial?
A.
The coefficient of the term with the highest degree.
B.
The coefficient of the term with the lowest degree.
C.
The sum of all coefficients in the polynomial.
D.
The product of all coefficients in the polynomial.
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Solution
The leading coefficient is defined as the coefficient of the term with the highest degree in the polynomial.
Correct Answer: A — The coefficient of the term with the highest degree.
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Q. Which of the following describes viscosity?
A.
Resistance to flow
B.
Density of a fluid
C.
Surface tension
D.
Pressure exerted by a fluid
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Solution
Viscosity is a measure of a fluid's resistance to flow.
Correct Answer: A — Resistance to flow
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Q. Which of the following devices is based on the principle of a p-n junction? (2023)
A.
Resistor
B.
Capacitor
C.
LED
D.
Inductor
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Solution
A Light Emitting Diode (LED) is based on the principle of a p-n junction, emitting light when current flows through it.
Correct Answer: C — LED
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Q. Which of the following devices is based on the principle of semiconductors?
A.
Transformer
B.
Capacitor
C.
Transistor
D.
Inductor
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Solution
A transistor is a semiconductor device that can amplify or switch electronic signals and electrical power.
Correct Answer: C — Transistor
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Q. Which of the following devices operates on the principle of electromagnetic induction? (2019)
A.
Electric motor
B.
Generator
C.
Transformer
D.
All of the above
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Solution
All of the above devices operate on the principle of electromagnetic induction.
Correct Answer: D — All of the above
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Q. Which of the following devices uses electromagnetic induction? (2019)
A.
Electric motor
B.
Battery
C.
Resistor
D.
Capacitor
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Solution
An electric motor uses electromagnetic induction to convert electrical energy into mechanical energy.
Correct Answer: A — Electric motor
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Q. Which of the following devices uses the magnetic effects of current? (2023)
A.
Electric motor
B.
Battery
C.
Resistor
D.
Capacitor
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Solution
An electric motor operates based on the magnetic effects of current, converting electrical energy into mechanical energy.
Correct Answer: A — Electric motor
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Q. Which of the following devices uses the principle of electromagnetic induction? (2022)
A.
Transformer
B.
Resistor
C.
Capacitor
D.
Diode
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Solution
A transformer uses the principle of electromagnetic induction to transfer electrical energy between circuits.
Correct Answer: A — Transformer
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Q. Which of the following devices uses the principle of electromagnetism? (2019)
A.
Electric motor
B.
Thermometer
C.
Barometer
D.
Hydrometer
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Solution
An electric motor operates on the principle of electromagnetism, converting electrical energy into mechanical energy.
Correct Answer: A — Electric motor
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Q. Which of the following diatomic molecules has a bond order of 1?
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Solution
H2 has a bond order of 1, calculated as (2 bonding electrons - 0 antibonding electrons)/2 = 1.
Correct Answer: C — H2
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Q. Which of the following diatomic molecules has the highest bond order?
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Solution
N2 has the highest bond order of 3, while O2 has a bond order of 2 and F2 has a bond order of 1.
Correct Answer: A — N2
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Q. Which of the following disasters is classified as a 'biological disaster'? (2020)
A.
Earthquake
B.
Flood
C.
Pandemic
D.
Tsunami
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Solution
A pandemic is classified as a biological disaster, as it involves the spread of infectious diseases affecting large populations.
Correct Answer: C — Pandemic
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Q. Which of the following disasters led to the establishment of the Federal Emergency Management Agency (FEMA) in the United States? (1927)
A.
Hurricane Andrew
B.
The Great Mississippi Flood
C.
The 9/11 attacks
D.
The Northridge Earthquake
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Solution
The Great Mississippi Flood of 1927 prompted the establishment of FEMA to improve disaster response and recovery efforts.
Correct Answer: B — The Great Mississippi Flood
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Q. Which of the following diseases is caused by a protozoan? (2023)
A.
Malaria
B.
Tuberculosis
C.
HIV/AIDS
D.
Hepatitis
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Solution
Malaria is caused by protozoan parasites of the genus Plasmodium.
Correct Answer: A — Malaria
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Q. Which of the following diseases is characterized by the destruction of insulin-producing cells? (2022)
A.
Type 1 Diabetes
B.
Type 2 Diabetes
C.
Hypertension
D.
Obesity
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Solution
Type 1 Diabetes is characterized by the autoimmune destruction of insulin-producing beta cells in the pancreas.
Correct Answer: A — Type 1 Diabetes
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Q. Which of the following diseases is characterized by the presence of a rash? (2019)
A.
Diabetes
B.
Measles
C.
Hypertension
D.
Asthma
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Solution
Measles is characterized by a distinctive rash along with other symptoms.
Correct Answer: B — Measles
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Q. Which of the following documents is considered the first written constitution in the world?
A.
The Magna Carta.
B.
The U.S. Constitution.
C.
The Constitution of Athens.
D.
The Articles of Confederation.
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Solution
The Constitution of Athens, attributed to Cleisthenes, is often considered the first written constitution in the world, establishing a framework for governance in ancient Athens.
Correct Answer: C — The Constitution of Athens.
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Q. Which of the following does not belong in the context of art?
A.
Impressionism
B.
Cubism
C.
Expressionism
D.
Algorithm
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Solution
'Algorithm' is a term from mathematics and computer science, while the others are styles of art.
Correct Answer: D — Algorithm
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Q. Which of the following does not belong in the context of global warming? (2023)
A.
Greenhouse gases
B.
Deforestation
C.
Renewable energy
D.
Ice melting
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Solution
Renewable energy is a solution to global warming, while the others contribute to the problem.
Correct Answer: C — Renewable energy
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Q. Which of the following does not belong to the group? (2019)
A.
Sodium
B.
Potassium
C.
Calcium
D.
Chlorine
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Solution
Chlorine is a non-metal, while the others are metals.
Correct Answer: D — Chlorine
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Q. Which of the following does not belong to the same category?
A.
Lion
B.
Tiger
C.
Elephant
D.
Cheetah
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Solution
Elephant is a herbivore, while the others are carnivores.
Correct Answer: C — Elephant
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Q. Which of the following does not fit in the context of environmental conservation? (2021)
A.
Recycling
B.
Deforestation
C.
Sustainability
D.
Renewable energy
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Solution
Deforestation is detrimental to environmental conservation, while the others promote it.
Correct Answer: B — Deforestation
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