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Calculate the wavelength of an electroma...

Calculate the wavelength of an electromagnetic wave of frequency 15 MHz.

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ICSE-SELF ASSESSMENT PAPER 4-SECTION-B
  1. Calculate the wavelength of an electromagnetic wave of frequency 15 MH...

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  2. Name the type of single pulley that can act as a force multiplier. Dra...

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  3. A person standing between two vertical cliffs and 480 m from the neare...

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  4. A person standing between two vertical cliffs and 480 m from the neare...

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  5. A monochromatic point source of light O is seen through a rectangular ...

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  6. A monochromatic point source of light O is seen through a rectangular ...

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  7. A monochromatic point source of light O is seen through a rectangular ...

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  8. A monochromatic point source of light O is seen through a rectangular ...

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  9. A ray of light XY passes through a right angled isosceles prism as sho...

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  10. A ray of light XY passes through a right angled isosceles prism as sho...

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  11. A ray of light XY passes through a right angled isosceles prism as sho...

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  12. Draw a graph of potential difference (V) versus current (I) for an ohm...

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  13. How can you find the resistance of the resistor from this graph?

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  14. What is a non-ohmic resistor ?

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  15. Sometimes when a vehicle is driven at a particular speed, a rattling s...

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  16. Suggest one way by which the rattling sound could be stopped.

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  17. An electric bulb is marked 100 W, 250 V. What information does this co...

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  18. How much current will the bulb draw, if connected to a 250 V supply?

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  19. Draw a labelled ray diagram to illustrate (a) critical angle (b) total...

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  20. Write a formula to express the relationship between refractive index o...

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  21. A battery of e.m.f. 12 V and internal resistance 2 Omega is connected ...

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