The relative refractive index will be greater than one when light transmits from a rarer to denser medium.

True

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False

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Solution

The correct option is A
True

A relative refractive index is the ratio of the absolute refractive index of the second medium to the first. A rarer medium has a low absolute refractive index as compared to the denser medium, so here relative refractive index will be >1.

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Q. The relative refractive index of denser medium with respect to the rarer medium will be greater than one when light transmits from a rarer to denser medium.

Q. The relative refractive index of denser medium with respect to the rarer medium will be greater than 1, when light travels from rarer to a denser medium.

State whether the following statement is true or false.
If the angle of incidence is greater than the critical angle, light is not refracted at all, when it falls on the surface from a denser medium to a rarer medium.

Fill in the blanks to complete the following sentences:

(a) When light travels from a rarer to a denser medium, its speed .............

(b) When light travels from a denser to a rarer medium, its speed..........

(c) The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be....................

Q. Velocity of light travelling from rarer medium to denser medium decreases by 30%. Find the refractive index of the denser medium with-respect to rarer medium?

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The relative refractive index will be greater than one when light transmits from a rarer to denser medium.

The correct option is A True A relative refractive index is the ratio of the absolute refractive index of the second medium to the first. A rarer medium has a low absolute refractive index as compared to the denser medium, so here relative refractive index will be >1.

The correct option is A
True

A relative refractive index is the ratio of the absolute refractive index of the second medium to the first. A rarer medium has a low absolute refractive index as compared to the denser medium, so here relative refractive index will be >1.