Here, you may find CSS Optional Subjects MCQs. If you want to prepare MCQs of optional subjects, CSS MCQs platform is here to serve you while preparing your MCQs portion of your CSS Exam. Please practice these CSS Optional Subjects MCQs on a daily basis.

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy.

A. radio, visible, infrared, visible, ultraviolet
B. microwave, infrared, visible, ultraviolet
C. visible, ultraviolet, infrared, gamma rays
D. X-radiation, visible, infrared, microwave

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Correct Answer: B. microwave, infrared, visible, ultraviolet
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The quantum number that specifies the way the orbital is oriented in space is:

A. the electron spin quantum number
B. the magnetic quantum number
C. the angular momentum quantum number
D. the principal quantum number

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Correct Answer: B. the magnetic quantum number
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