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Acids, Bases And Salts

Question
CBSEENSC10012892
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What is the significance of refractive index?

Solution
We know that, light propagates with different speed in different media. The value of refractive index gives us information about the bending or refraction of light rays. It tells us if the light ray will bend towards or away from the normal.

Some More Questions From Acids, Bases and Salts Chapter

What is the wavelength range of visible light? What is the importance of this wavelength range?

Define a ray of light and a beam light. What are the different types of beams of light?

What is an optical medium? How can we classify different media on the basis of their behaviour towards light?

What do you mean by reflection, refraction and absorption of light?

Which type of phenomenon (reflection or refraction) occurs when light falls on (i) a highly polished surface like a mirror and (ii) a transparent medium like glass or water?

What is meant by the optical image of an object?

What are real and virtual images? Can these images be obtained on a screen? Give reasons in support of your answer.

Give three points of differences between real and virtual images.

What is a mirror? Mention the different types of mirrors commonly used.

Define the following terms in connection with reflection of light:
Incident ray, reflected ray, point of incidence, normal, angle of incidence and angle of reflection.

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