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Question-1. What is spectrometer?
Answer-1: It is an instrument used for analyzing the spectrum of a source of light.
Question-2. Define refractive index?
Answer-2: The ratio of the sine of the angle of incidence to the sine of angle of refraction is constant for any two media is called refractive index.
Question-3. Define dispersive power of a prism?
Answer-3: Dispersive power of a prism indicates the ability of the material of the prism to disperse the light rays. It is defined as the angular dispersion to the deviation of the mean ray.
Question-4. How does refractive index change with wave length?
Answer-4: Higher the wave length, smaller is the refractive index.
Question-5. Does the deviation depend on the angle of prism?
Answer-5: Yes, greater the angle of the prism, more is the deviation.
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