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Find the angle theta(a) made by the ligh...

Find the angle `theta_(a)` made by the light ray when it gets refracted from water to air, as shown in figure.

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From Snell's Law
`mu_(w) sin theta_(w)=mu_(a) sin theta_(a)`
`rArr 4/3 xx 3/5 =1 sin theta_(a)`
`sin theta_(a)=4/5`
`rArr theta_(a)="sin"^(-1) 4/5`
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MOTION-GEOMETRICAL OPTICS-Exercise - 4 | Level-II
  1. Find the angle theta(a) made by the light ray when it gets refracted f...

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  2. The ratio of powers of a thin convex and thin concave lens is 3/2 and ...

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  3. Figure shows object O. Final image I is formed after two refractions a...

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  4. What will be the minimum angle of incidence such that the total intern...

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  5. Two identical prism of index sqrt3 are kept as shown in the figure. A ...

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  6. A point object is placed at a distance of 20cm from a thin plano-conve...

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  7. Graph of position of image vs position of point object from a convex l...

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  8. Parallel rays of light from Sun falls on a biconvex lens of focal leng...

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  9. A simple telescope used to view distant objects has eyepiece and objec...

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  10. A ray of light travelling in water is incident on its surface open to ...

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  11. Statement-1 The formula connecting u,v and f for a spherical mirror is...

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  12. In an experiment to determine the focal length (f) of a concave mirror...

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  13. Two beam of red and violet colors are made to pass separately through ...

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  14. A light beam is traveling from Region I to region IV (refer figure). T...

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  15. An optical component and an object S placed along its optic axis are g...

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  16. A ball is dropped from a height of 20 m above the surface of water in ...

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  17. A student performed the experiment of determination of focal length of...

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  18. A ray OP of monochromatic light is incident on the face AB of prism AB...

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  19. The focal length of a thin biconvex lens is 20 cm. When an object is m...

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  20. A biconvex lens of focal length 15 cm is in front of a plane mirror. T...

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  21. A large glass slabe (mu=5//3) of thickness 8cm is placed over a point ...

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