It is given the E-M waves have the following order of increasing λ and then which of them would be more suitable for finding cracks in walls and bridges, among Cosmic rays, gamma rays, x-rays, ultraviolet rays, visible and infrared rays?
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Solution
X-rays would be more suitable for finding cracks in walls and bridges, among Cosmic rays, gamma rays, x-rays, ultraviolet rays, visible and infrared rays
These are the rays having less wavelength and high energy.
But in this case of cosmic and gamma rays, they are highly energetic waves so they can penetrate through the materials also.