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Current Affairs January 2024

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4

Which law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume?

A. Boyle's Law

B. Charles's Law

C. Gay-Lussac's Law

D. Avogadro's Law

Correct Answer :

B. Charles's Law


Related Questions

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4

Which of the following statements about circular motion is true?

A. The centripetal force acts outward from the center of the circle.

B. Angular velocity is constant in circular motion.

C. The velocity of an object in circular motion is constant.

D. Acceleration is directed towards the center of the circle.

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4

What is the law that states the total electric charge in a closed system is constant?

A. Coulomb's Law

B. Ohm's Law

C. Conservation of Charge

D. Ampere's Law

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4

Which law states that the total energy in an isolated system remains constant?

A. Law of Conservation of Energy

B. Law of Conservation of Momentum

C. Law of Conservation of Mass

D. Law of Universal Gravitation

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4

What is the SI unit of capacitance in the CGS system?

A. Farad

B. Statfarad

C. Ampere-second

D. Volt

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4

What is the unit of electric charge?

A. Coulomb

B. Volt

C. Ampere

D. Farad

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4

What is the SI unit of inductance?

A. Henry

B. Farad

C. Ohm

D. Volt

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4

What is the SI unit of magnetic field strength in the CGS system?

A. Oersted

B. Tesla per meter

C. Ampere per meter

D. Weber

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4

Which of the following is a measure of an object's resistance to changes in its linear motion?

A. Inertia

B. Momentum

C. Impulse

D. Damping coefficient

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4

What is the SI unit of angular momentum?

A. Kilogram-meter per second

B. Joule-second

C. Newton-meter

D. Hertz

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4

Which law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume?

A. Boyle's Law

B. Charles's Law

C. Gay-Lussac's Law

D. Avogadro's Law

What is the correct answer?

4

Which type of lens is thinner in the center and thicker at the edges?

A. Convex lens

B. Concave lens

C. Plano-convex lens

D. Plano-concave lens

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4

What is the SI unit of energy?

A. Joule

B. Watt

C. Newton

D. Volt

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4

Which of the following is a fundamental force of nature responsible for holding atomic nuclei together?

A. Electromagnetic force

B. Gravitational force

C. Weak nuclear force

D. Strong nuclear force

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4

What is the unit of electric current in the CGS system?

A. Ampere

B. Coulomb

C. Statampere

D. Ohm

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4

Which of the following statements about transformers is true?

A. They only work with direct current (DC).

B. They can increase or decrease voltage in an electrical circuit.

C. They do not involve the principle of electromagnetic induction.

D. They are used to store electrical energy.

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4

What is the process by which a solid changes directly into a gas without passing through the liquid phase?

A. Evaporation

B. Sublimation

C. Condensation

D. Melting

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4

What is the phenomenon where light is separated into its component colors due to refraction and reflection within a material?

A. Dispersion

B. Polarization

C. Diffraction

D. Interference

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4

What is the SI unit of electrical conductance?

A. Siemens

B. Ohm

C. Farad

D. Volt

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4

What is the SI unit of frequency?

A. Hertz

B. Newton

C. Pascal

D. Watt

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4

Which type of nuclear decay releases an alpha particle?

A. Alpha decay

B. Beta decay

C. Gamma decay

D. Positron emission

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What is the process by which an unstable atomic nucleus loses energy by emitting radiation called?

A. Radioactive decay

B. Nuclear fission

C. Nuclear fusion

D. Electron capture

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4

What is the phenomenon where light waves oscillate in a single plane?

A. Polarization

B. Diffraction

C. Interference

D. Dispersion

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4

What is the process by which a material becomes magnetized when placed in a magnetic field?

A. Induction

B. Magnetization

C. Polarization

D. Ferromagnetism

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4

Which of the following statements about wave speed is true?

A. It is determined by frequency and wavelength.

B. It is independent of the medium through which the wave travels.

C. It is inversely proportional to amplitude.

D. It is a scalar quantity.

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4

What is the SI unit of magnetic flux in the CGS system?

A. Weber

B. Gauss

C. Tesla

D. Henry

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4

What is the acceleration due to gravity on the surface of the Earth?

A. 9.8 m/s²

B. 6.67 × 10^-11 Nm²/kg²

C. 3.00 × 10^8 m/s

D. 1.6 m/s²

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4

Which law states that the total entropy of an isolated system can never decrease over time?

A. First Law of Thermodynamics

B. Second Law of Thermodynamics

C. Third Law of Thermodynamics

D. Law of Conservation of Mass

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4

What is the phenomenon where a wave superposes with another wave, resulting in a new wave pattern?

A. Reflection

B. Diffraction

C. Refraction

D. Interference

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4

What is the SI unit of pressure?

A. Pascal

B. Newton

C. Joule

D. Watt

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4

What is the process of a solid changing directly into a gas called?

A. Evaporation

B. Sublimation

C. Condensation

D. Melting