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Last Updated On 16-03-2023 - By Jeesha Sara

A glass slab of thickness 8 cm contains the same number of waves as 10 cm of water when both are transverse by the same monochromatic light. If the refractive index of water is 4/3, then refractive index of glass is

a)

5/4

b)

3/2

c)

5/3

d)

16/15


Question ID - 150072 :-

A glass slab of thickness 8 cm contains the same number of waves as 10 cm of water when both are transverse by the same monochromatic light. If the refractive index of water is 4/3, then refractive index of glass is

a)

5/4

b)

3/2

c)

5/3

d)

16/15

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

Let the wavelength of monochromatic light in glass be cm and in water be cm.

 Number of waves in 8 cm of glass=, and number of waves in 10 cm of glass .

Now, 

 



Next Question :

In Young’s double slit experiment, if  is the distance between the slits and the screen upon which interference pattern is observed,  is the average distance between the adjacent fringes and  being the slit separation. The wavelength of light is given by

a)

b)

c)

d)


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