Physics
A mirage occurs because of

Reflection by hot ground
Total internal reflection by layers of air
Diffraction of light
Interference of light

ANSWER DOWNLOAD EXAMIANS APP

Physics
To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

Should be made of a good conductor but can be of any shape
Can be of any shape
Should be in the form of a vertical rod
Should be made of a good conductor like copper with sharp-pointed edges

ANSWER DOWNLOAD EXAMIANS APP