Question

What is the order of shortest visible wavelength? (a) 3000 Å (b) 4000 Å (c) 6500 Å (d) 8000 Å​

Answer 1

Answer:

4000

Explanation:

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Answer 2

The order of the shortest visible wavelength is (b) 4000 Å.

• The visible region from the electromagnetic radiation spectrum consists of the wavelength of 4000 Å to 7000 Å.
• All the colours VIBGYOR fall in the visible spectrum range. The shortest visible wavelength is thus 4000 Å, and it is of violet colour.
• At 4000 Å, ultraviolet rays are present, which are not visible.
• At 6500 Å, visible light is there, but the shortest wavelength is asked here.
• At 8000 Å, infrared rays are present, which are also not visible.