AimMent

For Class 8, 9 & 10

Foundation - a strong base in Physics, Chemistry, Maths & Biology

Concept-first questions with clear model answers across all four subjects, aligned to NCERT. Start early, build the habit, and walk into your board exams, NEET and JEE already ahead.

Class 824Class 924Class 1036
SubjectAllPhysics 19Chemistry 19Biology 19Mathematics 27
ChapterAllAlgebraic Expressions and IdentitiesCell Structure and FunctionsChemical Effects of Electric CurrentCoal and PetroleumCombustion and FlameComparing QuantitiesConservation of Plants and AnimalsCrop Production and ManagementExponents and PowersForce and PressureFrictionLightLinear Equations in One VariableMaterials: Metals and Non-MetalsMensurationMicroorganisms: Friend and FoePollution of Air and WaterReaching the Age of AdolescenceReproduction in AnimalsSome Natural PhenomenaSoundSquares and Square RootsSynthetic Fibres and Plastics

Showing 1 question for Class 8. Tap a card to reveal the answer.

PhysicsLighteasy

State the two laws of reflection of light.

Reveal answer ↓

What it is

Reflection is light bouncing off a surface following two fixed rules.

Answer

First law: the incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane. Second law: the angle of incidence is always equal to the angle of reflection (i = r).

angle i = angle r

  • •Incident ray, reflected ray and normal lie in one plane
  • •Angle of incidence = angle of reflection (i = r)
  • •Angles are measured from the normal, not the surface

Why learn this

It's why mirrors, periscopes and even your reflection in still water work.

💡 Memory trick

Angle IN equals angle OUT (i = r), both measured from the normal.