Which of the following statements about waves is true?
Longitudinal waves require a medium for propagation.
Transverse waves have oscillations perpendicular to the direction of wave motion.
Electromagnetic waves are an example of mechanical waves.
Sound waves are an example of electromagnetic waves.
Correct Answer :
B. Transverse waves have oscillations perpendicular to the direction of wave motion.
Related Questions
Which of the following statements about nuclear reactors is true?
They use nuclear fusion to generate electricity.
They control nuclear fission reactions to produce heat.
They primarily use coal as a fuel source.
They do not involve the release of radiation.
What is the SI unit of magnetic pole strength?
Ampere-meter
Weber
Tesla
Ampere
Which type of nuclear decay releases an alpha particle?
Alpha decay
Beta decay
Gamma decay
Positron emission
What is the formula for calculating electric power in a circuit?
P = VI
P = V²/R
P = I²R
P = V/R
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
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 field strength?
Tesla
Weber
Gauss
Ampere
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
What is the SI unit of magnetic flux density?
Tesla
Weber
Henry
Gauss
What is the process by which a material becomes electrically charged when brought in contact with a charged object?
Conduction
Induction
Charging by friction
Polarization
Which of the following is a fundamental particle found in the nucleus of an atom?
Neutron
Electron
Proton
Photon
Which type of lens is thicker in the center and thinner at the edges?
Convex lens
Concave lens
Plano-convex lens
Plano-concave lens
Which of the following is a non-contact force?
Friction
Tension
Gravity
Magnetic force
What is the phenomenon where a wave is partially deflected and partially absorbed by a surface?
Reflection
Diffraction
Refraction
Absorption
What is the law that states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration?
Newton's First Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
Law of Gravitation
What is the SI unit of heat energy?
Calorie
Joule
Newton-meter
Watt
Which of the following statements about electric potential energy is true?
It is a scalar quantity.
It depends on the charge of the object and the distance from another charge.
It is always negative.
It is measured in amperes.
Which of the following is a measure of the amount of matter in an object?
Mass
Weight
Volume
Density
Which of the following is a measure of an object's resistance to changes in its state of motion?
Inertia
Momentum
Impulse
Damping coefficient
What is the phenomenon where light waves oscillate in a single plane?
Polarization
Diffraction
Interference
Dispersion
Which of the following statements about gravity is true?
It is a contact force.
It is a repulsive force.
It is a conservative force.
It only acts on planets and stars.
Which type of electromagnetic wave has the highest frequency?
Gamma rays
Radio waves
X-rays
Microwaves
Which of the following is a measure of a material's ability to conduct an electric current?
Conductance
Impedance
Susceptance
Inductance
Which law states that the total momentum of an isolated system remains constant if no external forces act on it?
Newton's First Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
Law of Conservation of Momentum
What is the SI unit of magnetic flux in the CGS system?
Weber
Gauss
Tesla
Henry
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 changes direction as it passes through a medium with a different density?
Reflection
Diffraction
Refraction
Interference
What is the wavelength range of visible light?
100 nm - 400 nm
400 nm - 700 nm
700 nm - 1000 nm
1 mm - 10 mm
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 nuclear decay releases a beta particle?
Alpha decay
Beta decay
Gamma decay
Electron capture