The equation expressing the correlation between refractive index and wavelength of light is
(a) μ = A + B/λ
(b) μ = A + Bλ²
(c) μ = Aλ + B
(d) μ = A + B/λ²
WBBSE
Class X
Physical Science
Light – Reflection and Refraction
01 Mark
2024
(d) μ = A + B/λ²
Explanation
The refractive index (μ) of light is inversely proportional to the square of the wavelength (λ). This is represented by the equation μ = A + B/λ².
Related Questions
More WBBSE Moderate level questions
1/12
Q.
The magnified virtual image is formed by (a) convex mirror (b) convex lens (c) plane...
A.
(d) concave lens Explanation A concave lens forms a magnified virtual image...
Q.
At what angle must a light ray fall on the surface of an equilateral prism...
A.
Angle of the prism = 60° Angle of minimum deviation (δ) =...
Q.
If a reflected ray from a concave mirror makes an angle of 45° with the...
A.
d. 45° Explanation: According to the law of reflection, the angle of...
Q.
Where is the image formed if the object is placed in between f and 2f...
A.
beyond 2f
Q.
State whether the refractive index of a medium would increase or decrease if the angle...
A.
The refractive index of a medium is independent of the angle of...
Q.
Which parameter remains unaltered during refraction of light? (a) Velocity (b) Amplitude (c) Frequency (d)...
A.
(c) Frequency Explanation When light travels from one transparent medium to another,...
Q.
Draw refracted rays for the incident rays which are parallel to the principal axis of...
A.
Ray Diagram for convex lens: OR Converging action of the convex lens...
Q.
A light is incident from air medium on another medium. If the refractive index of...
A.
Finding the wavelength: μ = 1.5 λmedium = 4000 Å λair =...
Q.
Define dispersion of light. How would you identify monochromatic light and composite light with the...
A.
Dispersion of Light is the phenomenon where light splits into its constituent...
Q.
Write down the relationship between relative refractive index and absolute refractive index. On which factors...
A.
Relative refractive index of medium 2 with respect to medium 1: 1μ2...
Q.
Whether a concave lens is called a converging or diverging lens? Answer with reason.
A.
A concave lens is called a diverging lens. Reason: When parallel rays...
Q.
A ray parallel to the principal axis of a concave mirror follows which path after...
A.
A ray that is parallel to the principal axis of a concave...