true or false 1. Electromagnetic waves are transverse waves. 2. Gamma rays have the lowest frequency in the EM spectrum. 3. EM wave are produced when there are changing magnetic field and electric field. 4. Ultraviolet waves have greater frequency than visible light. 5. Natural sources of X-rays include pulsars, supernova and black holes. 6. Violet light has lower frequency than red. 7. Visible light is not the only EM wave that can be seen by our naked eyes. 8. EM wave's frequency can be as large as a building up to as small as on an atom. 9. Types of EM waves are arranged in the spectrum in decreasing value of their frequencies 10. Ultraviolet rays can cause sunburn and cancer on living cells.
