Question 1

If an electron vibrates up and down 1000 times each second,it generates an electromagnetic wave having a

Accepted Answer

A) period of 1000 s. 
B) speed of 1000 m/s. 
C) wavelength of 1000 m. 
D) frequency of 1000 Hz. 
E) wavelength of 1000 km. 
A) period of 1000 s. 
B) speed of 1000 m/s. 
C) wavelength of 1000 m. 
D) frequency of 1000 Hz. 
E) wavelength of 1000 km.

Question 2

Materials generally become warmer when light is

Accepted Answer

A) absorbed by them. 
B) reflected by them. 
C) transmitted by them. 
D) all of these 
E) none of these 
A) absorbed by them. 
B) reflected by them. 
C) transmitted by them. 
D) all of these 
E) none of these

Question 3

Which of the following is fundamentally different from the others?

Accepted Answer

A) sound waves 
B) X-rays 
C) gamma rays 
D) light waves 
E) radio waves 
A) sound waves 
B) X-rays 
C) gamma rays 
D) light waves 
E) radio waves

Question 4

Sunburns are produced by

Accepted Answer

A) ultraviolet light. 
B) visible light. 
C) infrared light. 
D) all of these 
E) none of these 
A) ultraviolet light. 
B) visible light. 
C) infrared light. 
D) all of these 
E) none of these

Question 5

Most of the waves in the electromagnetic spectrum are

Accepted Answer

A) red light. 
B) blue light. 
C) green light. 
D) invisible. 
A) red light. 
B) blue light. 
C) green light. 
D) invisible.

Exam 26: Properties of Light

If an electron vibrates up and down 1000 times each second,it generates an electromagnetic wave having a

Materials generally become warmer when light is

Which of the following is fundamentally different from the others?

Sunburns are produced by

Most of the waves in the electromagnetic spectrum are

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