What is the SI unit of intensity of sound?
Watt per square meter
Decibel
Hertz
Pascal
Correct Answer :
A. Watt per square meter
Related Questions
What is the process by which a liquid changes into a gas below its boiling point?
Evaporation
Vaporization
Condensation
Sublimation
What is the process by which a material becomes magnetized when placed in a magnetic field?
Induction
Magnetization
Polarization
Ferromagnetism
What is the phenomenon where light waves oscillate in multiple planes?
Polarization
Diffraction
Dispersion
Interference
What is the SI unit of frequency?
Hertz
Newton
Pascal
Watt
What is the unit of electric current in the CGS system?
Ampere
Coulomb
Statampere
Ohm
Which of the following statements about transformers is true?
They only work with direct current (DC).
They can increase or decrease voltage in an electrical circuit.
They do not involve the principle of electromagnetic induction.
They are used to store electrical energy.
What is the SI unit of angular momentum?
Kilogram-meter per second
Joule-second
Newton-meter
Hertz
What is the process by which a gas changes into a liquid?
Vaporization
Condensation
Sublimation
Fusion
Which law states that the volume of a gas is directly proportional to its absolute temperature at constant pressure?
Boyle's Law
Charles's Law
Gay-Lussac's Law
Avogadro's Law
What is the SI unit of half-life in radioactive decay?
Second
Year
Joule
Becquerel
Which type of mirror can form both real and virtual images?
Concave mirror
Convex mirror
Plane mirror
Spherical mirror
What is the SI unit of magnetic field strength?
Tesla
Weber
Gauss
Ampere
Which of the following is a fundamental particle found in the nucleus of an atom?
Neutron
Electron
Proton
Photon
Which law states that the total energy in an isolated system remains constant?
Law of Conservation of Energy
Law of Conservation of Momentum
Law of Conservation of Mass
Law of Universal Gravitation
Which type of electromagnetic wave has the highest frequency?
Gamma rays
Radio waves
X-rays
Microwaves
What is the SI unit of electric charge in the MKS system?
Coulomb
Statcoulomb
Ampere
Franklin
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?
Faraday's Law of Electromagnetic Induction
Lenz's Law
Ohm's Law
Ampere's Law
Which of the following is a fundamental particle found in the nucleus of an atom?
Neutron
Electron
Proton
Photon
Which of the following is a non-contact force?
Friction
Tension
Gravity
Magnetic force
What is the phenomenon where a wave undergoes a change in direction due to a change in medium?
Reflection
Diffraction
Refraction
Interference
What is the SI unit of capacitance?
Farad
Ohm
Henry
Volt
What is the phenomenon where light changes direction when passing from one medium to another?
Reflection
Diffraction
Refraction
Polarization
Which of the following statements about kinetic friction is true?
It always opposes motion.
It is independent of the normal force.
It is greater than static friction.
It depends on the velocity of the object.
Which law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume?
Boyle's Law
Charles's Law
Gay-Lussac's Law
Avogadro's Law
What is the unit of electric charge?
Coulomb
Volt
Ampere
Farad
Which type of energy is associated with the motion of atoms and molecules?
Kinetic energy
Potential energy
Thermal energy
Mechanical energy
What is the SI unit of magnetic susceptibility?
No unit (dimensionless)
Tesla per meter
Ampere per meter
Weber
Which law states that the force between two charges is inversely proportional to the square of the distance between them?
Coulomb's Law
Ohm's Law
Gauss's Law
Ampere's Law
What is the phenomenon where a wave superposes with another wave, resulting in a new wave pattern?
Reflection
Diffraction
Refraction
Interference
What is the phenomenon where light is separated into its component colors due to refraction and reflection within a material?
Dispersion
Polarization
Diffraction
Interference