The figure shows where an object is placed in front of a convex lens. What image does the lens form? A convex lens stands on a horizontal principal axis, with F₁ and 2F₁ marked on the left of the lens and F₂ and 2F₂ on the right. An upright object arrow stands to the left of 2F₁, farther from the lens than 2F₁.

The figure shows where an object is placed in…

The figure shows where an object is placed in front of a convex lens.

Question 27

MediumOriginal question

The figure shows where an object is placed in front of a convex lens. What image does the lens form?

Real, inverted and the same size, at 2F₂Correct answerYour answerReal, inverted and magnified, beyond 2F₂Correct answerYour answerVirtual, erect and magnified, on the same side as the objectCorrect answerYour answerReal, inverted and diminished, between F₂ and 2F₂Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer D

Correct answer: D

The object is beyond 2F₁.
For an object beyond 2F₁, a convex lens forms a real, inverted, diminished image between F₂ and 2F₂. A camera lens works this way.

Concept: Image by a convex lens: object beyond 2F
Typical timeTypical: 60 s
Your timeYours: —

The rule this testsLight

Practise this chapter →

Ten questions from Everyday Physics, at your own pace.

Practise this chapter →

Ten questions from Everyday Physics, at your own pace.

The figure shows where an object is placed in front of a convex lens.

Question 27

Explanation