Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question
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Question

What distinguishes a diffraction grating from a double-slit setup in terms of its physical structure?
Options
A A diffraction grating is made of a different material than a double-slit setup.
B A diffraction grating has significantly more parallel slits than a double-slit setup.
Correct Answer
C A diffraction grating has wider slits compared to a double-slit setup.
D A diffraction grating uses reflective surfaces, while a double-slit uses transmissive slits.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The text states: 'If many parallel slits similar to those in Young's experiment are spaced regularly and of the same width, a brighter and sharper diffraction pattern can be obtained. Such an arrangement is known as a diffraction grating.' This highlights that a grating involves 'many parallel slits' as opposed to just two.

Hint

Consider the opening statement about diffraction gratings on page 5.

Question Info

Course: PHY 104
Topic: Diffraction and Interference of light waves
Type: Objective
Difficulty: Not specified
Question 506 of 947
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