What is the process by which a solid changes directly into a gas without passing through the liquid phase?
Evaporation
Sublimation
Condensation
Melting
Correct Answer :
B. Sublimation
Related Questions
What is the SI unit of frequency in the CGS system?
Hertz
Rad/s
Cycles per second
Revolutions per minute
What is the process by which a solid changes directly into a gas without passing through the liquid phase?
Evaporation
Sublimation
Condensation
Melting
Which of the following is a non-contact force?
Friction
Tension
Gravity
Magnetic force
Which of the following is a fundamental particle found in the nucleus of an atom?
Neutron
Electron
Proton
Photon
What is the phenomenon where a wave is partially deflected and partially absorbed by a surface?
Reflection
Diffraction
Refraction
Absorption
What is the phenomenon where light waves oscillate in a single plane?
Polarization
Diffraction
Interference
Dispersion
What is the unit of electric current in the CGS system?
Ampere
Coulomb
Statampere
Ohm
Which of the following is a measure of an object's resistance to changes in its linear motion?
Inertia
Momentum
Impulse
Damping coefficient
What is the process by which an atomic nucleus splits into smaller particles?
Radioactive decay
Nuclear fission
Nuclear fusion
Electron capture
Which type of particle is negatively charged and orbits the nucleus of an atom?
Electron
Proton
Neutron
Positron
What is the SI unit of heat energy?
Calorie
Joule
Newton-meter
Watt
Which law states that an object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an external force?
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 pressure?
Pascal
Newton
Joule
Watt
What is the SI unit of resistance in an electrical circuit?
Ohm
Volt
Ampere
Watt
What is the phenomenon where a wave changes direction as it passes through a medium with a different density?
Reflection
Diffraction
Refraction
Interference
Which type of electromagnetic wave has the highest frequency?
Gamma rays
Radio waves
X-rays
Microwaves
What is the SI unit of electric potential?
Volt
Ampere
Ohm
Watt
What is the SI unit of capacitance?
Farad
Ohm
Henry
Volt
What is the SI unit of angular acceleration?
Rad/s²
m/s²
Hz
Nm
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.
What is the SI unit of electrical conductance?
Siemens
Ohm
Farad
Volt
What is the SI unit of momentum?
Kilogram-meter per second
Newton-meter
Joule
Watt
What is the acceleration due to gravity on the surface of the Earth?
9.8 m/s²
6.67 × 10^-11 Nm²/kg²
3.00 × 10^8 m/s
1.6 m/s²
What is the process by which a material becomes magnetized when placed in a magnetic field?
Induction
Magnetization
Polarization
Ferromagnetism
What is the unit of angular velocity?
Rad/s
m/s
Hz
Nm
Which law states that the total electric charge in a closed system is constant?
Coulomb's Law
Ohm's Law
Conservation of Charge
Ampere's Law
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 inductance?
Henry
Farad
Ohm
Volt
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 wavelength range of visible light?
100 nm - 400 nm
400 nm - 700 nm
700 nm - 1000 nm
1 mm - 10 mm