science
Grade-7
Easy

Question

Which of the following cannot be a value of the refractive index of a material?

  1. 0
  2. 1
  3. 2
  4. 3

hintHint:

The refractive index of water is minimum.

The correct answer is: 0


    The correct answer is a)0. The refractive index of air is 1 which is the minimum possible.
    Refractive index is the ratio of speed of light in vacuum and speed of light in other medium. As the speed of light is fastest in vacuum the value of refractive index for other mediums can not be less than 1.

    Related Questions to study

    Grade-7
    science

    What decides the amount of bending of light towards or away from the normal?

    What decides the amount of bending of light towards or away from the normal?

    scienceGrade-7
    Grade-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
    Grade-7
    science

    During normal incidence, the angle of incidence ___ the angle of refraction.

    During normal incidence, the angle of incidence ___ the angle of refraction.

    scienceGrade-7
    parallel
    Grade-7
    science

    The refractive indices of water___ glass ___ air.

    The refractive indices of water___ glass ___ air.

    scienceGrade-7
    Grade-7
    science

    During normal incidence, the light ray goes ___.

    During normal incidence, the light ray goes ___.

    scienceGrade-7
    Grade-7
    science

    During normal incidence on a glass slab, the angle of incidence = ____.

    During normal incidence on a glass slab, the angle of incidence = ____.

    scienceGrade-7
    parallel
    Grade-7
    science

    The absolute refractive index of a medium is the ratio of the speed of light in the ____ and ____.

    The absolute refractive index of a medium is the ratio of the speed of light in the ____ and ____.

    scienceGrade-7
    Grade-7
    science

    The minimum value of the refractive index is ___.

    The minimum value of the refractive index is ___.

    scienceGrade-7
    Grade-7
    science

    A ray of light is incident on an air-glass interface at an angle of 48 degrees and finally comes out from glass to air, after refraction through glass slab, the angle of emergence will be ___ degrees.

    A ray of light is incident on an air-glass interface at an angle of 48 degrees and finally comes out from glass to air, after refraction through glass slab, the angle of emergence will be ___ degrees.

    scienceGrade-7
    parallel
    Grade-7
    science

    During normal incidence, the angle of incidence is equal to the angle of refraction = ___ degrees.

    During normal incidence, the angle of incidence is equal to the angle of refraction = ___ degrees.

    scienceGrade-7
    Grade-7
    science

    During refraction through a glass slab, the incident ray is not parallel to ____.

    During refraction through a glass slab, the incident ray is not parallel to ____.

    scienceGrade-7
    Grade-7
    science

    The unit of the refractive index is ___.

    The unit of the refractive index is ___.

    scienceGrade-7
    parallel
    Grade-7
    science

    The speed of light is ___ x 108 m/s.

    The speed of light is ___ x 108 m/s.

    scienceGrade-7
    Grade-7
    science

    Which of the following is represented by ‘x’ in the diagram below.

    Which of the following is represented by ‘x’ in the diagram below.

    scienceGrade-7
    Grade-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
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.