ExamPlay Light Logo
সাইন ইন করুন

Physics for IGCSE & O level - Rays And Waves (Section 1 - No. 12)

Which of the following is a characteristic of electromagnetic waves?
They require a medium to travel
They are longitudinal waves
They can travel through a vacuum
They have a speed slower than 300,000 km/s

ব্যাখ্যা

Electromagnetic waves can travel through a vacuum.

মন্তব্য (0)

বিজ্ঞাপন