Light and Energy

The relationship between wavelength and frequency is λ=c/f.  Calculate the wavelength of light that has a frequency of 5.2 x 10¹² 1/s. The speed of of light is 3.0x 10⁸ m/s.

• 5.8 x 10 ^-5 m
• 5.8 x 10 ^-7 m
• 5.19 x 10 ¹⁴ m
• 1.56 x 10 ²³ m

High frequency waves have _________ wavelength.

• varying
• high
• the same
• low

A high-frequency wave has ___________ than a low-frequency wave

• a longer wavelength
• a shorter wavelength
• the same wavelength
• a stronger source

Solve this problems using the equation: C = λ  x  ν
If an AM radio station broadcasts at 9.95 x 10⁵ Hz, what is the wavelength of this radiation?

• 6.59 x 10^-28 m
• 1.01 x 10^-6 m
• 3.32 x 10^-3 m
• 301 m

Solve this problems using the equation: C = λ  x  ν
A microwave oven emits radiation at a wavelength of 5.00 x 10^-3cm. What is the frequency of this radiation?
(Convert to m first).

• 6.67 x 10^-7 Hz
• 2.00 Hz
• 1.50 x 10⁶ Hz
• 6.00 x 10¹⁰ Hz

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 10¹⁹ Hz
• 1.37 x 10¹² Hz
• 3.0 x 10⁸ Hz