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The velocities of light in two different...

The velocities of light in two different media are 2*`10^8`m/s and 2.5 * `10^8`m/s respectively.The critical angle for these media is

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`sin^(-1) 4/5`
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The speed of light in media M_1 and M_2 are 1.5 xx 10^8 m//s and 2.0 xx 10^8 m//s respectively. A ray of light enters from medium M_1 to M_2 at an incidence angle i . If the ray suffers total internal reflection, the value of i is.

The velocity of light in the core of a step index fibre 2xx10^(8) m//s and the critical angle at the core-cladding interface is 80^(@) .Find the numerical aperture and the acceptance angle for the fibre in air.The velocity of light in vacuum is 3xx10^(8)m//s

Light travels in two media A and B with speeds 1.8 × 10^(8) m s^(–1) and2.4 × 10^(8) m s^(–1) respectively. Then the critical angle between them is

Two transparent media A and B are separated by a plane boundary. The speed of light in medium A is 2.0xx10^(8)ms^(-1) and in medium B is 2.5xx10^(8)ms^(-1) . The critical angle for which a ray of light going from A to B suffers total internal reflection is

Two transparent media A and B are separated by a plane boundary. The speed of light in medium A is 2.0xx10^(8)ms^(-1) and in medium B is 2.5xx10^(8)ms^(-1) . The critical angle for which a ray of light going from A to B suffers total internal reflection is

A body of mass m_(1) moving with a velocity 3 m//s collides with another body at rest of m_(2) . After collision the velocities of the two bodies are 2 m//s and 5 m//s , respectively , along the direction of motion of m_(1) . The ratio m_(1)//m_(2) is

When light is incident on a medium at angle i and refracted into a second medium at an angle r, the graph of sin r versus sin i is as shown. From this one can conclude that (i) the velocity of light in second medium is sqrt3 times the velocity of light in the first medium (ii) the velocity of light in the first medium is sqrt3 times the velocity of ligth in second medium (iii) the critical angle of the two media is given by sin i_C=1sqrt3 (iv) the critical anlge of the two media is given by sin i_C=1sqrt2

The components of a particles velocity in the directions at right angles are 3 m//s,4 m//s "and "12m//s respectively . The actual velocity of the particle , in m//s is

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AAKASH SERIES-RAY OPTICS-PROBLEMS ( LEVEL-I)
  1. One side of a glass slab is silvered as shown in the figure. A ray of ...

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  2. Calculate the refractive index of material with respect to air if its ...

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  3. The velocities of light in two different media are 2*10^8m/s and 2.5 *...

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  4. An optical fibre (RI = 1.72) is surrounded by a glass coating (RI= 1.5...

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  5. A ray of light travelling in glass (mug=3//2) is incident on a horizon...

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  6. A liquid of refractive index 1.5 is poured into a cyclindrical jar of ...

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  7. The radii of curvature of a lens are + 20 cm and + 30 cm. The material...

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  8. The radii of curvature of a lens are + 20 cm and + 30 cm. The material...

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  9. An object of size 3.0 cm is placed 14 cm in front of a concave lens of...

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  10. A concave - convex lens has faces of radii 4 cm and 3 cm respectively ...

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  11. A concave - convex lens has faces of radii 4 cm and 3 cm respectively ...

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  12. A concave - convex lens has faces of radii 4 cm and 3 cm respectively ...

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  13. If the angle of prism is 60^@ and the angle of minimum deviation is al...

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  14. A ray of light passing through a prism having refractive index sqrt2 s...

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  15. A ray of light passes through an equilateral glass prism, such that th...

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  16. A ray of light is incident at an angle of 60^(@) on the face of a pris...

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  17. A ray of light is incident normally on one of the refracting surfaces ...

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  18. For an equilateral prism, it is observed that when a ray strikes grazi...

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  19. A flint glass prism and a crown glass prism are to be combined in such...

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  20. An air bubble is seen inside a solid sphere of glass (n=1.5) of 4.0 cm...

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