a light ray travelling in air is incident on the surface of a dense Flint glass slab if angle of incidence and refraction are 60 degree and 30 degree repectively then calculate the refractive index of dense flint glass w.r.t. air.
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3
Answer:
The speed of light decreases when it enters from a rarer medium to denser medium and increases when it enters from a denser medium to rarer medium. Therefore, the speed of light increases when light ray passes from water to air and the speed of light decreases when light ray passes from water to glass.
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19
Answer:
the refractive index is SINI/SINR = SIN 60°/SIN 30° = √3/2 / 1/2
THAT EQUALS TO √3 OR I.73 (APPROX)
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