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The reflected waves from on ionsphere ar...

The reflected waves from on ionsphere are ………..

A

ground waves

B

sky waves

C

space waves

D

very high frequency waves

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The correct Answer is:
B
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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- FEBRUARY 2018-SECTION-II
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  2. In interference pattern, using two coherent sources of light, the fri...

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  3. The electric field at a distance r from a long wire having charge per ...

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  4. S.I. unit of potential gradient is

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  5. The momentum associated with photon is given by ….. .

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  6. A pure semiconductor

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  7. If a glass plate refractive index is 1.732 is to be used as a polarise...

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  8. State the conditions for constructive and destructive inter-ference of...

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  9. State and explain Ampere's law.

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  10. Draw a neat and labelled block diagram of a receiver.

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  11. Define magnetization. Write its S.I. unit and dimensions.

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  12. The electron in the hydrogen atom is moving with a speed of 2.5 xx 10^...

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  13. A capacitor of capacitance 0.5 muF is connected to a source of alterna...

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  14. Calculate the de-Broglie wavelength of an electron moving with one fif...

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  17. What is Zener diode? How is it used as voltage regulator?

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  18. In a biprism experiment, light of wavelength 5200 Å is used to get an ...

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