Question

The correct arrangement in increasing order of wavelength of X-rays, UV rays, and microwaves is

• A. microwave, X-rays, UV rays
• B. UV rays, X-rays, microwave
• C. X-rays, UV rays, microwave
• D. microwave, UV rays, X-rays

Hint:

Wavelength increases from X-rays → UV rays → Microwaves. Frequency decreases in the same order.

Answer 1

The Correct Option is C

In the electromagnetic spectrum, the wavelengths increase in this order: \[ \text{Gamma rays} < \text{X-rays} < \text{Ultraviolet (UV)} < \text{Visible light} < \text{Infrared} < \text{Microwave} < \text{Radio waves} \] Thus, for the given three: \[ \text{X-rays} < \text{UV rays} < \text{Microwaves} \] This means X-rays have the shortest wavelength, microwaves the longest.