test 4

1. Spherical aberration is an optical effect observed in an optical device (lens, mirror, etc.) that occurs due to the increased refraction of light rays when they strike a lens or a reflection of light rays when they strike a mirror near its edge, in comparison with those that strike nearer the centre. It signifies a deviation of the device from the norm, i.e., it results in an imperfection of the produced image. When it is manifested?

Only when using glass

only when there is night

only under water

only when you want to

Hint

2. What is the nature of a flood light?

Light

Water

Fire

Ground

Hint

3. aberation is not fun. Why?

nothing is

it is not

because you are boring

Hint