1) In 1905 Einstein interpreted the “photoelectric effect” of light, a phenomenon that cannot be explained by the wave theory of light. (2) When a photon strikes an electron, the resulting action is analogous to the collision of billiard balls. (3) The effect of such collisions can be observed when light falling on a metal plate produces a shower of electrons. (4) Einstein deduced that light is not a continuous stream of energy but is composed of individual particles or bundles of energy, which he called photons.

Question

1) In 1905 Einstein interpreted the “photoelectric effect” of light, a phenomenon that cannot be explained by the wave theory of light. (2) When a photon strikes an electron, the resulting action is analogous to the collision of billiard balls. (3) The effect of such collisions can be observed when light falling on a metal plate produces a shower of electrons. (4) Einstein deduced that light is not a continuous stream of energy but is composed of individual particles or bundles of energy, which he called photons.

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4) Although sentence 1 is placed appropriately, the rest of the paragraph above is not well organized. Which of the following reorderings of sentences 2-4 most improves the continuity of the paragraph?
A) 2, 4, 3
B) 3, 2, 4
C) 3, 4, 2
D) 4, 2, 3

Answer 1

and your thinking is....?

Answer 2

The correct answer is C) 3, 4, 2.

To determine the correct order, let's analyze the relationships among the sentences:

Sentence 1 introduces the topic of Einstein interpreting the photoelectric effect.

Sentence 2 provides an analogy to help explain the phenomenon.

Sentence 3 describes the observable effect of light on a metal plate.

Sentence 4 presents Einstein's conclusion about the nature of light.

To improve the continuity of the paragraph, the sentences should flow logically from one to another.

Reordering the sentences, the improved continuity of the paragraph would be as follows:

(3) The effect of such collisions can be observed when light falling on a metal plate produces a shower of electrons.
(4) Einstein deduced that light is not a continuous stream of energy but is composed of individual particles or bundles of energy, which he called photons.
(2) When a photon strikes an electron, the resulting action is analogous to the collision of billiard balls.

By placing sentence 3 first, it provides context for the later sentences. Then, sentence 4 presents Einstein's conclusion, which builds on the observation described in sentence 3. Finally, sentence 2 provides an analogy that helps to explain the phenomenon described in the previous sentences.