List of top Science Questions on Physics

Define scattering of light and explain the Tyndall effect with an example.
Calculate the focal length of a lens with power –2.0 D and identify its type.
Explain the causes and correction methods for Myopia (Short-sightedness) and Hypermetropia (Long-sightedness).
State Ohm's law and derive the mathematical expression for it.
Define electric power and derive the relation \(P = VI\).
Define 1 kilowatt-hour (kWh) and state its relationship with Joules.
State Fleming’s Left-Hand Rule and Right-Hand Thumb Rule.
Differentiate between Direct Current (DC) and Alternating Current (AC).
Define principal focus and focal length for a concave mirror.
Explain the refraction of light through a rectangular glass slab.
Define refractive index and state Snell’s law of refraction.
Distinguish between a concave and a convex lens with their uses.
Define the power of a lens and state its S.I. unit.