Q 12-08-045JEE MainJEE Main 2025 (24 Jan, Shift 2)Easy
Arrange the following in the ascending order of wavelength $(\lambda)$:
(A) Microwaves $(\lambda_1)$ (B) Ultraviolet rays $(\lambda_2)$ (C) Infrared rays $(\lambda_3)$ (D) X-rays $(\lambda_4)$
Choose the most appropriate answer from the options given below:
Answer: (D) $\lambda_4 < \lambda_2 < \lambda_3 < \lambda_1$
In the electromagnetic spectrum, in order of increasing wavelength: X-rays, ultraviolet, (visible), infrared, microwaves.
$$\lambda_4 < \lambda_2 < \lambda_3 < \lambda_1$$
Solution by Sreeraj P, M.Sc Physics