Electromagnet Spectrum – Online MCQs – Physics 10th

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

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

3. Which of these electromagnetic waves has a high frequency?

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

5. Light year is a unit of:

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

7. It has the highest wavelength of all the colours.

8. Which of the following has a minimum wavelength?

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

10. Which among the following has the maximum penetrating power?

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

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

13. Waves in decreasing order of their wavelength are:

14. They are produced when fast moving electrons lose their energy quickly.

15. They are produced when the nuclei of unstable atoms decay into a stable nucleus or lose energy.

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

17. This colour has minimum speed, which with most deviation.

18. Ultraviolet radiation is further divided into:

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

20. The ultra-high frequency band of radio waves in the electromagnetic wave is used as in: