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Mention two applications of infrared rad...

Mention two applications of infrared radiation.

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1) ir - From the sun keep the earth warm and help to sustain life on the earth
(2) IR - Rays photograph are used for weathere are used for weather forecasting ( They are used in detectors, remote switches )
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SUNSTAR PUBLICATION-ANNUAL EXAM QUESTION PAPER MARCH -2015-PART-A
  1. List the properties of magnetic field lines.

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  2. Current in a coil falls from 2.5a to 0.0a in 0.1 second inducing an em...

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  3. Mention two applications of infrared radiation.

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  4. Draw the ray diagram of image formation in case of compound microscope

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  5. what is photo diode? Mention its one use.

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  6. Draw the block diagram of generalised communication system.

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  7. Derive an expression for capacitance of a paralle plate capacitor

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  8. How is galvanometer converted into an ammeter?

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  9. Distinguish between diamagnetic and paramagnetic substances.

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

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  11. Show that voltage in an inductor leads the current by pi//2 rad for ...

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  12. what is interference ? Write the condition for path difference in case...

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  13. Derive an expression for the radius of n^(th) Bohr's orbit of hydrogen...

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  14. Distinguish between conducor and semiconductor on the basis of theory ...

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  15. Obtain an expression for the electric field intenstiy at a point on th...

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  16. Obtain an expression for equivalent resistance of two resistors connec...

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  17. Derive the expression for magnetic field at a point on the axis of a c...

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  18. Derive the expression for refractive index of the material of the pris...

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  19. Write Einsteins's equation of photoelectric effect. Give Einstens expl...

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  20. What is amplification? With a circuit diagram, explain the working of ...

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