A Beam of White Light (From 400 Nm for Violet

question 4

Multiple Choice

A beam of white light (from 400 nm for violet to 700 nm for red) is normally incident on a diffraction grating.It produces two orders on a distant screen.Which diagram below (R = red, V = violet) correctly shows the pattern on the screen?

• A)I.
• B)II.
• C)III.
• D)IV.
• E)V.

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