Revision Quiz 2

Which of the following will produce an image at the position between F and 2F?

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When the position of image is at infinity, where is the object?

• At 2F

• At F

• Within F

• At infinity

If the size of the image = size of the object, what is the position of the object?

• At F

• Between F and 2F

• At 2F

• Beyond 2F

Which of the following will produce a real and magnified image of O?

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If the image formed by a convex lens is erect, then which of the following statement(s) MUST be correct?

(Can choose more than one)

• The image is magnified.

• The image is virtual.

• The image is on the same side as the object.

Which of the following ray diagrams shows how the image of the girl's eye is formed?

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A student uses a convex lens to look at a distant object. Which of the following statements is/are correct?

(Can choose more than one)

• The image is virtual.

• The image is formed between the lens and the observer.

• The image is on the focal plane.

• The image is diminished.

An illuminated 'R' is placed in front of a convex lens. The object distance is 30 cm and focal length of the lens is 20 cm.

Which of the following is/are correct?

(Can choose more than one)

• The image is real.

• The image is diminished.

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An object is moving at constant speed towards a convex lens with f = 40 cm. At the moment when it is 50 cm from the lens, which of the following is/are correct?

(Can choose more than one)

• The image is moving towards the lens.

• The image is moving away from the lens.

• The speed of image is faster than the speed of object.

• The speed of image is slower than the speed of object.