Physics - MOST IMPORTANT IB Security Assistant/Executive Previous Year Questions

a lower critical angle

no change in the critical angle

a higher critical angle

a critical angle of $\displaystyle 90$°

light travels $\displaystyle 1.33$ times faster in water than in vacuum

the critical angle of water with respect to air is $\displaystyle 1.33$

a light ray refracted in water from air bends through an angle of $\displaystyle 1.33$°

light travels $\displaystyle 1.33$ times slower in water than in vacuum

A medium with no forces between particles

A vacuum

Forces between neighbouring particles in the medium

A high-frequency source

conductor

magnet

resistor

insulator