Electromagnet Spectrum – Online MCQs – Physics 10th

1. They are highly penetrating that can pass through flesh but not bones.

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

3. In a vacuum, all electromagnetic spectrum components have the same:

4. This colour has its own refracted path in the air and becomes distinct on the spectrum

5. Which of the following has a minimum wavelength?

6. All electromagnetic waves travel through space or vacuum at the same speed of:

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

8. It has been used for security purposes, particularly in military technology.

9. The velocity of light in a diamond is: (whereas the refractive index of a diamond with respect to vacuum is 2.5)

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

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

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

13. Select the wrong statement. Electromagnetic waves:

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

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

16. The structure of solids is investigated by using:

17. Which of the following has a minimum wavelength?

18. Ultraviolet radiation is further divided into:

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

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