Match the following: List I List II A 1 speed of sound in air B 8 minutes 2 Speed greater than speed of sound in air. C 343 m/s 3 time taken by light to reach earth from sun. D Sonic boom 4 speed of light in air. A B C D

• A. 3          1          2          4
• B. 4          3          1          2
• C. 2          3          4          1
• D. 4          1          3          2