Which of the following cannot travel in a vacuum? A) a light wave B) a sound wave C) a radio ...

Author Question: Which of the following cannot travel in a vacuum? A) a light wave B) a sound wave C) a radio ... (Read 99 times)

123654777

Hero Member
Posts: 585

on: Jul 29, 2018

Which of the following cannot travel in a vacuum?

A) a light wave
B) a sound wave
C) a radio wave
D) all can
E) none can

Question 2

Compared to ultraviolet waves, the wavelength of infrared waves is

A) shorter.
B) the same.
C) longer.

Amiracle

Sr. Member
Posts: 334

Reply #1 on: Jul 29, 2018

Answer to Question 1

Answer: B

Answer to Question 2

Answer: C

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123654777

Hero Member
Posts: 585

Reply #2 on: Jul 29, 2018

Amiracle

Sr. Member
Posts: 334

Reply #3 on: Jul 29, 2018

You're welcome

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