A. Convex lens
B. Concave lens
C. Convex-concave lens
D. Concave-convex lens

A. Dalton
B. Newton
C. Micheal
D. None

A. The product of clockwise moments is equal to the product of anti-clockwise moments.
B. The sum of clockwise moments is equal to the sum of anti-clockwise moments
C. The product of clockwise moments is equal to the value of ant-clockwise
moments
D. The sum of clockwise moments equal to the value of anti-clockwise moments

A. Albert Einstein
B. Isaac Newton
C. Michael Faraday
D. Johannes Kepler

A. Convex
B. Concave
C. Diverging
D. None of these

A. Surface tension
B. Low air pressure
C. Air resistance
D. Viscosity of water

A. Carbondioxide
B. Carbon monoxide
C. Nitrogen
D. Hydrogen sulfide

A. Speed
B. Temperature
C. Mass
D. Velocity

A. Protons
B. Electrons
C. Neutrons
D. Positrons

A. Radioactivity
B. Theory of Relativity
C. Rocket Propulsion
D. Quantum Theory