Home
Current Affairs January 2024

What is the correct answer?

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

Correct Answer :

A. Dispersion


Related Questions

What is the correct answer?

4

What is the SI unit of electric charge in the MKS system?

A. Coulomb

B. Statcoulomb

C. Ampere

D. Franklin

What is the correct answer?

4

Which law states that the electromotive force (emf) in a closed circuit is equal to the rate of change of magnetic flux through the circuit?

A. Faraday's Law of Electromagnetic Induction

B. Lenz's Law

C. Ohm's Law

D. Ampere's Law

What is the correct answer?

4

Which of the following statements about gravity is true?

A. It is a contact force.

B. It is a repulsive force.

C. It is a conservative force.

D. It only acts on planets and stars.

What is the correct answer?

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

What is the correct answer?

4

Which of the following is a fundamental particle found in the nucleus of an atom?

A. Neutron

B. Electron

C. Proton

D. Photon

What is the correct answer?

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

What is the correct answer?

4

What is the SI unit of intensity of sound?

A. Watt per square meter

B. Decibel

C. Hertz

D. Pascal

What is the correct answer?

4

Which type of particle is negatively charged and orbits the nucleus of an atom?

A. Electron

B. Proton

C. Neutron

D. Positron

What is the correct answer?

4

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

A. Hertz

B. Rad/s

C. Cycles per second

D. Revolutions per minute

What is the correct answer?

4

Which law states that 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

What is the correct answer?

4

What is the SI unit of electric potential difference?

A. Volt

B. Ampere

C. Ohm

D. Watt

What is the correct answer?

4

Which of the following statements about kinetic friction is true?

A. It always opposes motion.

B. It is independent of the normal force.

C. It is greater than static friction.

D. It depends on the velocity of the object.

What is the correct answer?

4

What is the SI unit of power?

A. Watt

B. Joule

C. Volt

D. Ampere

What is the correct answer?

4

What is the SI unit of magnetic susceptibility?

A. No unit (dimensionless)

B. Tesla per meter

C. Ampere per meter

D. Weber

What is the correct answer?

4

Which law states that the force between two charges is inversely proportional to the square of the distance between them?

A. Coulomb's Law

B. Ohm's Law

C. Gauss's Law

D. Ampere's Law

What is the correct answer?

4

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

A. Vaporization

B. Deposition

C. Sublimation

D. Condensation

What is the correct answer?

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

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

What is the correct answer?

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

What is the correct answer?

4

What is the SI unit of resistance in an electrical circuit?

A. Ohm

B. Volt

C. Ampere

D. Watt

What is the correct answer?

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

What is the correct answer?

4

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

What is the correct answer?

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

What is the correct answer?

4

What is the phenomenon where light waves oscillate in multiple planes?

A. Polarization

B. Diffraction

C. Dispersion

D. Interference

What is the correct answer?

4

What is the phenomenon where a wave changes direction as it passes through a medium with a different density?

A. Reflection

B. Diffraction

C. Refraction

D. Interference

What is the correct answer?

4

Which of the following is an example of a longitudinal wave?

A. Sound wave

B. Light wave

C. X-ray

D. Radio wave

What is the correct answer?

4

Which of the following statements about electric potential energy is true?

A. It is a scalar quantity.

B. It depends on the charge of the object and the distance from another charge.

C. It is always negative.

D. It is measured in amperes.

What is the correct answer?

4

Which of the following statements about waves is true?

A. Longitudinal waves require a medium for propagation.

B. Transverse waves have oscillations perpendicular to the direction of wave motion.

C. Electromagnetic waves are an example of mechanical waves.

D. Sound waves are an example of electromagnetic waves.

What is the correct answer?

4

Which of the following is a type of nuclear radiation that consists of high-speed electrons or positrons?

A. Alpha radiation

B. Beta radiation

C. Gamma radiation

D. Neutron radiation

What is the correct answer?

4

What is the unit of electric charge?

A. Coulomb

B. Volt

C. Ampere

D. Farad