Which type of lens is thinner in the center and thicker at the edges?
Convex lens
Concave lens
Plano-convex lens
Plano-concave lens
Correct Answer :
A. Convex lens
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Conductance
Impedance
Susceptance
Inductance
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.
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Ohm's Law
Ampere's Law
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
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Sound wave
Light wave
X-ray
Radio wave
Which type of nuclear decay releases an alpha particle?
Alpha decay
Beta decay
Gamma decay
Positron emission
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 of the following is a fundamental particle found in the nucleus of an atom?
Neutron
Electron
Proton
Photon
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 type of particle is negatively charged and orbits the nucleus of an atom?
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What is the SI unit of frequency?
Hertz
Newton
Pascal
Watt
Which type of electromagnetic wave has the highest frequency?
Gamma rays
Radio waves
X-rays
Microwaves
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 SI unit of magnetic field strength in the CGS system?
Oersted
Tesla per meter
Ampere per meter
Weber
What is the SI unit of magnetic flux in the CGS system?
Weber
Gauss
Tesla
Henry
What is the SI unit of intensity of sound?
Watt per square meter
Decibel
Hertz
Pascal
Which type of lens is thicker in the center and thinner at the edges?
Convex lens
Concave lens
Plano-convex lens
Plano-concave lens
What is the phenomenon where a wave superposes with another wave, resulting in a new wave pattern?
Reflection
Diffraction
Refraction
Interference
Which of the following is an example of a simple machine?
Lever
Inclined plane
Pulley
All of the above
What is the SI unit of angular momentum?
Kilogram-meter per second
Joule-second
Newton-meter
Hertz
What is the phenomenon where light waves oscillate in multiple planes?
Polarization
Diffraction
Dispersion
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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 of the following is a fundamental force of nature responsible for holding atomic nuclei together?
Electromagnetic force
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Strong nuclear force
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Polarization
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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.
What is the SI unit of capacitance in the CGS system?
Farad
Statfarad
Ampere-second
Volt
What is the phenomenon where light changes direction when passing from one medium to another?
Reflection
Diffraction
Refraction
Polarization
What is the process by which a gas changes into a liquid?
Vaporization
Condensation
Sublimation
Fusion
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 wavelength range of visible light?
100 nm - 400 nm
400 nm - 700 nm
700 nm - 1000 nm
1 mm - 10 mm