Electromagnetic Waves · JEE Main previous year questions

2025 1 question

1. Q392025 · 24 Jan 2025 · Shift 2

   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 :

   1. A.${\lambda }_4<{\lambda }_3<{\lambda }_2<{\lambda }_1$
   2. B.${\lambda }_4<{\lambda }_2<{\lambda }_3<{\lambda }_1$
   3. C.${\lambda }_3<{\lambda }_4<{\lambda }_2<{\lambda }_1$
   4. D.${\lambda }_4<{\lambda }_3<{\lambda }_1<{\lambda }_2$
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   Answer: B