Q23. A radar signal is beamed towards a planet from Earth and its echo is received seven minutes later. If the distance between the planet and Earth is 6.3X1010m, then the velocity of the signal will be:Physics — Measurements — Question 23 of 194A. 3x108 m/sB. 2.97x106 m/sC. 3.10x105 m/sD. 300 m/sPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →