Mocks don't measure how much you know. They measure how you behave under pressure. Use them for that.

General Science — quick quiz

5 KSP Constable-pattern questions on General Science. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 5

Hard

A convex lens of focal length 20 cm forms an image of an object placed 30 cm from the lens. What is the image distance from the lens?