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Answer as true or false with an explanation for the following: The wavelength of He-Ne laser light in water is less than its wavelength in the air. (The refractive index of water is $1.33 .$
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Step 1: We know that the speed of light in air or vacuum is given by the equation $v = c = f \lambda$, where $f$ is the frequency and $\lambda$ is the wavelength. Show more…
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State whether the following is true or false and explain your answer: The wavelength of He-Ne laser light in water is less than its wavelength in air. (The index of refraction of water is $1.33 .)$
The index of refraction of water is $1.33 .$ (a) What is the speed of light in water? (b) What is the wavelength in water of a light wave with a vacuum wavelength of $515 \mathrm{nm} ?$
It is common knowledge that the visible light spectrum extends approximately from $400 \mathrm{nm}$ to $700 \mathrm{nm}$. Roughly, $400 \mathrm{nm}$ to $500 \mathrm{nm}$ corresponds to blue light, $500 \mathrm{nm}$ to $550 \mathrm{nm}$ corresponds to green, $550 \mathrm{nm}$ to $600 \mathrm{nm}$ to yelloworange, and above $600 \mathrm{nm}$ to red. In an experiment, red light with a wavelength of $632.8 \mathrm{nm}$ from a HeNe laser is refracted into a fish tank filled with water with index of refraction 1.33. What is the wavelength of the same laser beam in water, and what color will the laser beam have in water?
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