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4

What is the phenomenon where a wave combines with another wave to produce a wave with greater amplitude?

A. Reflection

B. Diffraction

C. Refraction

D. Constructive interference

Correct Answer :

D. Constructive interference


Related Questions

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4

What is the phenomenon where a wave undergoes a change in direction due to a change in medium?

A. Reflection

B. Diffraction

C. Refraction

D. Interference

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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

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

A. Coulomb's Law

B. Ohm's Law

C. Ampere's Law

D. Faraday's Law

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4

What is the formula for calculating electric power in a circuit?

A. P = VI

B. P = V²/R

C. P = I²R

D. P = V/R

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4

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

A. Inertia

B. Momentum

C. Impulse

D. Damping coefficient

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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 electrical conductance?

A. Siemens

B. Ohm

C. Farad

D. Volt

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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

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

What is the wavelength range of visible light?

A. 100 nm - 400 nm

B. 400 nm - 700 nm

C. 700 nm - 1000 nm

D. 1 mm - 10 mm

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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.

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4

What is the SI unit of heat energy?

A. Calorie

B. Joule

C. Newton-meter

D. Watt

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4

What is the SI unit of magnetic field strength?

A. Tesla

B. Weber

C. Gauss

D. Ampere

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4

What is the phenomenon where a wave combines with another wave to produce a wave with greater amplitude?

A. Reflection

B. Diffraction

C. Refraction

D. Constructive 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

What is the SI unit of momentum?

A. Kilogram-meter per second

B. Newton-meter

C. Joule

D. Watt

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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.

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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 SI unit of angular acceleration?

A. Rad/s²

B. m/s²

C. Hz

D. Nm

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4

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

A. Neutron

B. Electron

C. Proton

D. Photon

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4

Which of the following is a type of nuclear radiation that consists of high-energy photons?

A. Alpha radiation

B. Beta radiation

C. Gamma radiation

D. Neutron radiation

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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.

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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 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

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4

What is the SI unit of magnetic flux?

A. Weber

B. Tesla

C. Henry

D. Gauss

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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

Which type of energy is associated with the motion of atoms and molecules?

A. Kinetic energy

B. Potential energy

C. Thermal energy

D. Mechanical energy

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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 SI unit of force?

A. Watt

B. Joule

C. Newton

D. Volt

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