Electromagnetic Waves

JEE Main level, single correct, medium

155 of 165

Question 155 of 165

The frequency of XX-rays; γ\gamma-rays and ultraviolet rays are respectively a,ba, b and cc then

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Answer: (A) a<b;b>ca \lt b ; b\gt c

Frequency range of γ\gamma-ray, b=1018−1023 Hzb=10^{18}-10^{23} \mathrm{~Hz}
Frequency range of X-ray, a=1016−1020 Hza=10^{16}-10^{20} \mathrm{~Hz}
Frequency range of ultraviolet ray, c=1015−1017 Hzc=10^{15}-10^{17} \mathrm{~Hz}
∴a<b;b>c\therefore a \lt b ; b\gt c

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