If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as \lambda_{\text{ultraviolet }}, \lambda_{\text{visible }} and \lambda_{\text{infrared }} respectively, then which one of the following gives the correct relationship among these wavelengths? [2019 CDS-I]

Correct Answer is : λultraviolet <λvisible <λinfrared

\lambda_{\text{ultraviolet }}>\lambda_{\text{visible }}>\lambda_{\text{infrared }}

\lambda_{\text{ultraviolet }}>\lambda_{\text{infrared }}>\lambda_{\text{visible }}

UPSC CDS Science Physics Questions Part 1

Question : 12 of 105

Marks: +1, -0

If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as λ‌ultraviolet ‌, λ‌visible ‌ and λ‌infrared ‌ respectively, then which one of the following gives the correct relationship among these wavelengths?

[2019 CDS-I]

λ‌ultraviolet ‌<λ‌infrared ‌<λ‌visible ‌
λ‌ultraviolet ‌>λ‌visible ‌>λ‌infrared ‌
λ‌ultraviolet ‌>λ‌infrared ‌>λ‌visible ‌
λ‌ultraviolet ‌<λ‌visible ‌<λ‌infrared ‌

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