science
Grade-7
Easy
Question
The unit of the refractive index is ___.
- m/s
- Degrees
- m
- It is unitless
Hint:
Recall the formula of refractive index.
The correct answer is: It is unitless
The correct answer is d) It is unitless.
The refractive index of a medium is equal to the ratio of speed of light in vacuum to the speed of light of the medium.
For example, we will calculate the refractive index of water:
n=299792.46 / 228850 = 1.333.
The refractive index of water is 1.333 or 1.31.
Related Questions to study
science
The speed of light is ___ x 108 m/s.
The speed of light is ___ x 108 m/s.
scienceGrade-7
science
Which of the following is represented by ‘x’ in the diagram below.
![](data:image/png;base64,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)
Which of the following is represented by ‘x’ in the diagram below.
![](data:image/png;base64,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)
scienceGrade-7
science
A light ray traveling through air (n = 1) enters the kerosene (n = 1.44) floating on top of water (1.33) in a glass (n = 1.5) container. It bends ___ the normal at the air-kerosene interface, ___ the normal at the kerosene-water interface and ___ the normal at the water-glass interface.
A light ray traveling through air (n = 1) enters the kerosene (n = 1.44) floating on top of water (1.33) in a glass (n = 1.5) container. It bends ___ the normal at the air-kerosene interface, ___ the normal at the kerosene-water interface and ___ the normal at the water-glass interface.
scienceGrade-7
science
A light ray traveling through air enters the ice (n = 1.3) floating on top of the water (1.33) in a pond. It bends ___ the normal at the air-ice interface and ___ the normal at the ice-water interface.
A light ray traveling through air enters the ice (n = 1.3) floating on top of the water (1.33) in a pond. It bends ___ the normal at the air-ice interface and ___ the normal at the ice-water interface.
scienceGrade-7
science
A light ray traveling in water (n = 1.33) enters glass (1.5). It bends ___ the normal.
A light ray traveling in water (n = 1.33) enters glass (1.5). It bends ___ the normal.
scienceGrade-7
science
A light ray traveling in kerosene enters the air. It bends ___ the normal.
A light ray traveling in kerosene enters the air. It bends ___ the normal.
scienceGrade-7
science
A light ray traveling in kerosene (n = 1.44) enters water (n = 1.33). It bends ___ the normal.
A light ray traveling in kerosene (n = 1.44) enters water (n = 1.33). It bends ___ the normal.
scienceGrade-7
science
During normal incidence on multiple mediums placed one after the other, the angle of incidence = ____.
During normal incidence on multiple mediums placed one after the other, the angle of incidence = ____.
scienceGrade-7
science
A light ray bends towards the normal on entering a medium from the air. Which of the following cannot be the second medium?
A light ray bends towards the normal on entering a medium from the air. Which of the following cannot be the second medium?
scienceGrade-7
science
During normal incidence of a light ray on a set of multiple mediums placed one after the other, the incident ray is not ___ the emergent ray.
During normal incidence of a light ray on a set of multiple mediums placed one after the other, the incident ray is not ___ the emergent ray.
scienceGrade-7
science
The speed of light is ___ x 108 m/s.
The speed of light is ___ x 108 m/s.
scienceGrade-7
science
Which of the following has the minimum value of refractive index?
Which of the following has the minimum value of refractive index?
scienceGrade-7
science
During normal incidence on multiple mediums placed one after the other, the ____ are equal.
During normal incidence on multiple mediums placed one after the other, the ____ are equal.
scienceGrade-7
science
During normal incidence on multiple mediums placed one after the other, the angle of incidence = angle of refractions = angle of emergence = ___ degrees.
During normal incidence on multiple mediums placed one after the other, the angle of incidence = angle of refractions = angle of emergence = ___ degrees.
scienceGrade-7
science
A light ray traveling through air (n = 1) enters the kerosene (n = 1.44) floating on top of the water (1.33) in a container. It bends ___ the normal at the air-kerosene interface and ___ the normal at the kerosene-water interface.
A light ray traveling through air (n = 1) enters the kerosene (n = 1.44) floating on top of the water (1.33) in a container. It bends ___ the normal at the air-kerosene interface and ___ the normal at the kerosene-water interface.
scienceGrade-7