Arrange the following in the ascending order of wavelength: (A) Gamma rays ($\lambda_{1}$) (B) x-ray $\left(\lambda_{2}\right)$ (C) Infrared waves ($\lambda_{3}$) (D) Microwaves $\left(\lambda_{4}\right)$ Choose the most appropriate answer from the options given below :

(C) $\lambda_{1}<\lambda_{2}<\lambda_{3}<\lambda_{4}$

(A) $\lambda_{4}<\lambda_{3}<\lambda_{1}<\lambda_{2}$

(B) $\lambda_{4}<\lambda_{3}<\lambda_{2}<\lambda_{1}$

(D) $\lambda_{2}<\lambda_{1}<\lambda_{4}<\lambda_{3}$

JEE Main · 2024 · 04 Apr 2024 · Shift 2 · EM Waves

Arrange the following in the ascending order of wavelength:
(A) Gamma rays (

λ_{1}

)
(B) x-ray

(λ_{2})

λ_{3}

)
(D) Microwaves

(λ_{4})

Choose the most appropriate answer from the options given below :

(A) $λ_{4} < λ_{3} < λ_{1} < λ_{2}$
(B) $λ_{4} < λ_{3} < λ_{2} < λ_{1}$
(C) $λ_{1} < λ_{2} < λ_{3} < λ_{4}$ ✓ Correct
(D) $λ_{2} < λ_{1} < λ_{4} < λ_{3}$

Answer: (C)

Solution

Ascending order of wavelength in the electromagnetic spectrum (shortest to longest): gamma rays

<

X-rays

<

infrared

<

microwaves, i.e.

λ_{1} < λ_{2} < λ_{3} < λ_{4}

JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Single correct option

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