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Who proposed the wave nature of light?...

Who proposed the wave nature of light?

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Which of the following does not support the wave nature of light ?

Explain the wave nature of light.

Name the physicist who established the wave nature of light.

Who proposed quantum theory of light?

Who proposed the cell theory?

Inspite of the wave nature of light, why is light assumed to travel in a straight line?

Whast is photo electric effect ? Does the effect support particle nature or wave nature of light?

Name the phenomenon which proves transverse wave nature of light. Give two uses of the devices whose functioning is based on this phenomenon.

Photoelectric effect supports the quantum nature of light because

(a) Why photoelectric effect can not be explained on the basis of wave nature of light ? Give reasons. (b) Write the basic features of photon picture of electromagnetic radiation on which Einstein's photoelectric equation is based.

OSWAAL PUBLICATION-Sample Paper 3-Exercise
  1. Whrite the expression for displacement current or Maxwell's displaceme...

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  2. How is the power of lens related to its focal length ?

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  3. Who proposed the wave nature of light?

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  4. What is the SI unit of activity?

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  5. Draw the circuit symbol of n-p-n transistor

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  6. Mention and five properties of electric field lines.

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  7. Give an expression for force acting on a charge moving in magnetic fie...

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  8. What is hysterisis? Define the terms 'coercivity' and 'retentivity' of...

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  9. What are eddy currents ? Mention two applications of eddy currents.

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  10. What is a thin prism? Write its deviation expression.

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  11. How do you represent plane polarized and unpolarised light ?

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  12. Define half life of a radioactive element and deduce the expression fo...

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  13. Give three differences between intrinsic and extrinsic semiconductors

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  14. Derive an expression for the electric potential energy of a system of ...

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  15. State and explain Ohm.s law and hence defien ohm.

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  16. Write any four properties of ferromagnetic materials and give an examp...

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  17. Derive the expression for emf induced in a straight conductor moving p...

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  18. State any three feautures of nuclear force

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  19. Distinguish between conductors, insulators and semiconductors on the b...

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  20. Draw a neat labelled block diagram of an AM transmitter.

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