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Calculate the speed of light in a mediun...

Calculate the speed of light in a mediun whose crifical angel is `45^@`. Mention two practical applications of optical fibre.

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Calculate the speed of light in a medium whose critical angle is 45^(@) .

Calculate the energy in joule correspending to light of wavelength 45nm. (Planck's constant h= 6.63xx10^-34 Js, speed of light c= 3xx10^8m/s ).

Calculate the energy in joule corresponding to light of wavelength 45 nm. (plancks constant, h=6.63xx10^(-34)J*s , speed of light c=3xx10^(8)m*s^(- ))-

The optic axis of two polaroids are inclined at an angle of 45^(@) with each other. Unpolarised light of intensity I_(0) being incident on the first polaroid emerges from the second polaroid. Find the intensity of the emergent light.

The optic axes of two polaroids are inclined at an angle of 45@ with each other. Unpolarised light of intensity I_0 being incident on the first polaroid emerges from the second polaroid. Find the intesity of the emergent light.

UNITED BOOK HOUSE-QUESTION PAPER 2015-EXERCISE
  1. What is understood by diffraction of light? In a single slit experimen...

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  2. Define angle of deviation. Show that angle of deviation incase of refr...

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  3. Calculate the speed of light in a mediun whose crifical angel is 45^@....

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  4. What is meant by stopping potential in photoelectric emission? Does th...

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  5. What conclusion is drawn from Davission-Germer experiment? Are matter ...

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  6. Write down the relation between radius of the nucleus and mass number ...

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  7. Draw the I-V characteristics of a light emitting diode (LED) and expla...

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  8. Draw the output characteristic curves of a n-p-n transistor in a C-E c...

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  9. What is NOR gate? Prepare its Truth Table. Why is it called Universal ...

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  10. What is Zener dioide? Draw its voltage vs currrent characteristics in ...

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  11. With the help of a circuit expain the function of a shunt used in a ga...

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  12. Sate Kirchhoff's laws in a network of conductors carrying current. 'S...

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  13. Establish the balanced condition of Wheatstone's bridge by applying Kr...

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  14. Length diameter and specific resistance of two wires of different mat...

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  15. Define self inductance of a coil.

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  16. A metallic disc of radius 10 cm is roatating uniforminty about a horiz...

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  17. The instantaneous voltage from an ac souce is given by e=200 sin 314t ...

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  18. State the condition under which the phenomenon of resonance occurs in ...

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  19. Focal lengths of two thin lenses kept in contant are f1 and f2. Prove ...

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  20. The refracting angle of a prism is 60^(@) and the refractive index of ...

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