ExamSIDE
Questions (Powered by ExamGOAL)
Mechanics
Units & Measurement and Dimensions
MCQ (Single Correct Answer)
Motion in a Straight Line
MCQ (Single Correct Answer)
Laws of Motion
MCQ (Single Correct Answer)
Circular Motion
MCQ (Single Correct Answer)
Work, Energy and Power
MCQ (Single Correct Answer)
Rotational Motion
MCQ (Single Correct Answer)
Gravitation
MCQ (Single Correct Answer)
Simple Harmonic Motion
MCQ (Single Correct Answer)
Fluid Mechanics
MCQ (Single Correct Answer)
Waves
MCQ (Single Correct Answer)
Heat and Thermodynamics
MCQ (Single Correct Answer)
Optics
Ray Optics
MCQ (Single Correct Answer)
Electromagnetism
Electrostatics
MCQ (Single Correct Answer)
Current Electricity
MCQ (Single Correct Answer)
Capacitor
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Atoms and Nuclei
MCQ (Single Correct Answer)
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
1
IAT (IISER) 2020
MCQ (Single Correct Answer)
+4
-1

The electric field of an electromagnetic wave is given by $\vec{E}(x, t)=E_0 \hat{z} \cos (a x+b t)$

If $c$ is the speed of light, then the value of $b$ is

A
$a c$
B
$2 \pi a c$
C
$\sqrt{2} a c$
D
$\frac{a c}{2 \pi}$
Questions Asked from MCQ (Single Correct Answer)
IAT (IISER) 2020 (1)
IAT (IISER) Subjects
Physics
Mechanics
Units & Measurement and DimensionsMotion in a Straight LineLaws of MotionCircular MotionWork, Energy and PowerRotational MotionGravitationSimple Harmonic MotionFluid MechanicsWavesHeat and Thermodynamics
Optics
Ray Optics
Electromagnetism
ElectrostaticsCurrent ElectricityCapacitorMoving Charges and MagnetismElectromagnetic InductionAlternating CurrentElectromagnetic Waves
Modern Physics
Atoms and NucleiDual Nature of RadiationSemiconductor Devices and Logic Gates
Chemistry
Physical Chemistry
Atomic StructureStates of MatterThermodynamicsChemical EquilibriumIonic EquilibriumLiquid SolutionSurface ChemistrySolid StateElectrochemistryChemical Kinetics
Inorganic Chemistry
Periodic Table and PeriodicityChemical Bonding and Molecular StructureMetallurgyHydrogen and It's Compoundsp-Block ElementsCoordination Compounds
Organic Chemistry
General Organic ChemistryIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohol, Phenols and EthersCarboxylic Acids and Its DerivativesCompounds Containing NitrogenBiomolecules
Mathematics
Algebra
Quadratic EquationsSequences and SeriesPermutations and CombinationsProbabilitySets and RelationsBinomial TheoremVector AlgebraThree Dimensional GeometryMatrices and DeterminantsStatisticsLinear ProgrammingComplex Numbers
Trigonometry
Trigonometric EquationsProperties of Triangles
Calculus
FunctionsLimits, Continuity and DifferentiabilityApplication of DerivativesDefinite IntegrationArea Under The CurvesDifferential Equations
Coordinate Geometry
Straight Lines and Pair of Straight LinesCircle
Biology
Botany
Cell - The Unit of LifeBiomoleculesCell Cycle and Cell DivisionSexual Reproduction in Flowering PlantsMicrobes in Human WelfareAnatomy of Flowering PlantsMineral NutritionRespiration in PlantsBiotechnology: Principles and ProcessesBiodiversity and ConservationMorphology of Flowering PlantsPhotosynthesis in Higher PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceOrganisms and PopulationsEcosystem
Zoology
Human Health and DiseasesBody Fluids and Its CirculationLocomotion and MovementNeural Control and CoordinationReproduction in OrganismsStructural Organisation in AnimalsDigestion and AbsorptionExcretory Products and Their EliminationChemical Coordination and IntegrationHuman ReproductionAnimal KingdomBreathing and Exchange of Gases