ELECTROMAGNETIC WAVES

What symbol is used for the speed of light?

(a)  

What is the following equation used to calculate?

 $\frac{c}{f}=\lambda$  

(a)  

Which of the following is NOT a physical constant?

• 2.997 ^{E 8} m/s

• 9.8 m/s ²

• 94,900,000 Hz

• 6.626 ^{E -34} J _* sec

TRUE or FALSE: red light waves are bigger than blue light waves.

• True

• False

Electromagnetic waves moving through the vacuum of space can vary in all of the following ways, EXCEPT:

• frequency

• energy

• wavelength

• speed

The prisms used in spectroscopy separate electromagnetic waves on the basis of:

• size

• energy

• speed

• frequency

What is the approximate length of a light wave whose frequency is 1,000,000 Hz?

• 300 meters

• 1,000,000 meters

• 300 nanometers

• 299,700,000 m/s

What number is represented by the expression 1 ^{E 9} ?

(a)  

Choose the TRUE statement.

• A blue light wave is longer than a red light wave.

• A red light wave has a lower frequency than a blue light wave.

• A blue light wave has less energy than a red light wave.

• A red light wave has a higher speed than a blue light wave.

All of the following waves are more energetic than visible light, EXCEPT:

• radio waves

• ultraviolet waves

• X-rays

• gamma rays