Q15. Arrange the following in the ascending order of wavelength: A. Gamma rays $\left( \lambda _ { 1 } \right)$ B. $x$ - rays $\left( \lambda _ { 2 } \right)$ C. Infrared waves $\left( \lambda _ { 3 } \right)$ D. Microwaves $\left( \lambda _ { 4 } \right)$ Choose the most appropriate answer from the options given below\\
(1) $\lambda _ { 4 } < \lambda _ { 3 } < \lambda _ { 1 } < \lambda _ { 2 }$\\
(2) $\lambda _ { 2 } < \lambda _ { 1 } < \lambda _ { 4 } < \lambda _ { 3 }$\\
(3) $\lambda _ { 1 } < \lambda _ { 2 } < \lambda _ { 3 } < \lambda _ { 4 }$\\
(4) $\lambda _ { 4 } < \lambda _ { 3 } < \lambda _ { 2 } < \lambda _ { 1 }$