PHYS 1260 EXAM 3 2025 ACTUAL EXAM COMPLETE

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PHYS 1260 EXAM 3 2025 ACTUAL EXAM COMPLETE

EXAM QUESTIONS WITH DETAILED VERIFIED

ANSWERS (100% CORRECT ANSWERS) /ALREADY

GRADED A+/ LATEST EXAM!!!

Most of the waves in the electromagnetic spectrum are

• red light.
• blue light.
• green light.
• invisible. - Answer-D) invisible.

Electromagnetic waves consist of

• the compression and refraction of electromagnetic

pulses.

• oscillating electric and magnetic fields. C) particles of

light energy.

• high-frequency sound waves. - Answer-B) oscillating

electric and magnetic fields.

Which of the following cannot travel in a vacuum (free space)?

• Light wave 1 / 3

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• Sound wave
• Radio wave
• [all of these]
• [none of these] - Answer-B) Sound wave

The fact that you can see stars in the nighttime sky is evidence that

• our atmosphere is transparent to visible light.
• light can travel in a vacuum.
• [both of these]
• [neither of these] - Answer-C) [both of these]

Light is reflected when

• electron clouds of atoms are energized.
• atomic nuclei are made to vibrate.
• incident light is returned into the medium from which it

came.

• electromagnetic waves emanate from matter. - Answer-
• incident light is returned into the medium from which it

came.

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When sunlight illuminates a page from your book it

• reflects most of it.
• absorbs at the text lettering.
• [both of these]
• [neither of these] - Answer-C) [both of these]

Light travels from one place to another along a path of least

• distance.
• time.
• effort.
• expense.
• complication. - Answer-B) time.

Most of the waves in the electromagnetic spectrum are

• red light.
• blue light.
• green light.
• invisible. - Answer-D) invisible.

Electromagnetic waves consist of

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