WAVELENGTH and FREQUENCY of EMR

What is the speed of light?

• 3.0x10⁸ ms

• 3.0x10⁸ m/s

• 6.626x10^-34 Js

• 6.626x10^-34 J/s

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low

• high, high

• low, high

• low, low

The frequency of violet light is 7.5x10¹⁴ Hz. What is its wavelength?

• 4.0x10^-7 m

• 4.0x10⁷ m

• 2.25x10²³m

• 2.25x10²³ Hz

If short wavelength has more ENERGY than long wavelength, which color Lightsaber is the most dangerous, or powerful?

• Red

• Orange

• Blue

• Green

High frequency waves have _________ wavelength.

• varying
• high
• the same
• low

The number of waves that pass a fixed point in a given amount of time is...

• frequency

• wave speed

• amplitude

• wavelength

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4

Which letter(s) represent the wavelength?

• A & B

• B & D

• B & F

• C & E

Violet light has a wavelength of
4.10 x 10^-12  m. What is the frequency?

• 1.23 x 10^ -3 Hz
• 7.31 x 10^ 19 Hz
• 1.37 x 10^12 Hz
• 3.0 x 10^ 8 Hz

which of the following lists shows EMR correctly arranged in order of increasing frequency?

• gamma rays, X-rays, microwaves, radio waves.

• X-rays, gamma rays, microwaves, radio waves.

• microwaves, radio waves, X-rays, gamma rays.

• radio waves, microwaves, X-rays, gamma rays.