Question

Two properties common to gamma radiations and visible light are:

• A. Both are high energy radiations and travel with the same speed in air or vacuum
• B. Both are Low energy radiations and travel with the same speed in air or vacuum
• C. Both are electromagnetic waves and travel with the same speed in air or vacuum
• D. Both are electromagnetic waves and produce sensation on our retina

Answer 1

The correct option is C

Both are electromagnetic waves and travel with the same speed in air or vacuum

Both are electromagnetic waves and both travel with the same speed of light, i.e., 3 x 10⁸ m s^-1 in vacuum or air.