Visible Light, with a Frequency of 6

question 59

Multiple Choice

Visible light, with a frequency of 6.0 *10¹⁴ Hz, is reflected from a spaceship moving directly away at a speed of 0.90c.The frequency of the reflected waves observed at the source is:

• A)3.2 *10¹³ Hz
• B)1.4 * 10¹⁴ Hz
• C)6.0*10¹⁴ Hz
• D)2.6 * 10¹⁵ Hz
• E)1.1 *10¹⁶ Hz