Tiêu đề ELECTROMAGNETIC SPECTRUM.pdf ✅

2020 www.teachersofphysics.com 7/5/2020 ELECTROMAGNETIC SPECTRUM

www.teachersofphysics.com copyright © 2020 10. Figure shows the table of electromagnetic. Spectrum in the increasing order of wavelengths. P x-rays Q Infra red Identify the radiation marked P and Q (2mks) Answers : P- Gamma rays Q- Visible light 11. The table below shows a part of electromagnetic spectrum. Wavelength 1000m 10-2m 10-4m 10-5m 10-6m 10-8m 10-9m Wave name Radio wave microwaves A Visible spectrum B C D Name the spectrum A, B, C and D. (2mk) A: Infrared rays B: Ultraviolet ray C: X- Ray D: Gamma rays 12. The figure shows regions of the electromagnetic spectrum. D is the region of visible light. Name the regions labeled A, B and C A D B C A. Radio wave B. X- Ray C. Gamma rays 13. The figure below shows regions of the complete electromagnetic spectrum. Name the regions labeled A, B and C. (3mk) R V A Visible Light B C 14. Name two types of electromagnetic radiations whose frequencies are greater than that of visible light.  Ultraviolet ray  X- Ray  Gamma rays 15. Arrange the following radiations in order of increasing wavelengths. Ultraviolet, Gamma Rays, Radio Waves, Infra Red Answers  Radio Waves  Infra-Red  Ultraviolet  Gamma Rays 16. Arrange the following in order of increasing frequency. Visible light, infrared radiation, x-rays, U.V.radiation, radio waves. Answer  Radio waves,  Infrared radiation,  Visible light  U.V.radiation  x-rays Decreasing wave length