Question

Which is the correct ascending order of wavelengths?

• A. λvisible < λX-ray < λgamma-ray <λmicrowave
• B. λgamma-ray < λX-ray < λvisible < λmicrowave
• C. λX-ray < λgamma-ray < λvisible < λmicrowave
• D. λmicrowave < λvisible < λgamma-ray < λX-ray

Answer 1

Answer: (B)

λgamma-ray < λX-ray < λvisible < λmicrowave

Answer 2

The correct answer is (B) : λgamma-ray < λX-ray < λvisible < λmicrowave

Explanation:

Wave length of microwave is maximum then visible light then X-rays and then gamma rays.
so the correct order will be
$\Rightarrow \lambda_{\text{gamma-ray}} < \lambda_{\text{X-ray}} < \lambda_{\text{visible}} < \lambda_{\text{microwave}}$