Electromagnet Spectrum – Online MCQs – Physics 10th

1. Vibrating atoms in a hot, glowing bulb filament emit:

2. Select the wrong statement. Electromagnetic waves:

3. The waves that have maximum penetrating power to treat tumours are:

4. Light year is a unit of:

5. This kind of lamp is used in sunbeds for artificial tanning.

6. What are the two colours that emerge from Prism’s two extreme ends?

7. Electromagnetic waves are:

8. The list that shows electromagnetic waves from the lowest to the highest frequency is:

9. The group containing only electromagnetic waves is:

10. The colour that is least deviated by a prism:

11. The type of electromagnetic wave used in security scanners at night is:

12. Which statement is TRUE about the red light?

13. A narrow beam of white light passes from air into the glass and is refracted. The wave characteristic remains unchanged in its:

14. The white light consists of:

15. This colour has a maximum speed in the glass prism, with the slightest deviation.

16. The direction of wave motion of electromagnetic waves is:

17. The list that shows electromagnetic waves in order of increasing wavelength is:

18. The electromagnetic rays used in radiotherapy to destroy cancer cells are:

19. The optical phenomenon in which the splitting of white light into seven distinct colours occur is called:

20. It is a cancer treatment that uses controlled doses of high-frequency x-rays to kill cancerous cells and shrink tumours.