D: 3.0 x 10⁸ m/s, 3.0 x 10⁴ m
Oracle Prep sorts past-paper questions by topic, so you can drill Waves and see which topics are most likely to come up next.
Sign up free →Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content
A flash of lightning and the corresponding sound of the thunder are detected 6s apart. A student calculates that the …
The displacement-distance and displacement-time graphs are for a water wave in a ripple tank. What is the speed of th…
Which application may use the part of the electromagnetic spectrum called microwaves?
The diagrams show a small compass close to a strong bar magnet. Which diagram shows the correct compass direction?
A positively-charged rod is held close to, but not touching, an isolated metal sphere. Which diagram shows the charge…
A lightning flash carries 40 C of charge and lasts for 5.0 ms. What is the average current in the flash?