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Statement-1: Short wave band are used fo...

Statement-1: Short wave band are used for transmission fo radiowaves to a large distance.
Statement-2: Short waves are reflected from ionosphere.

A

Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation of Statement-1.

B

Statement-1 is true, Statement-2 is true, Statement-2 is not correct explanation of Statement-1.

C

Statement-1 is true, Statement -2 is false.

D

Statement-1 is false, Statement -2 is true.

Text Solution

Verified by Experts

The correct Answer is:
a
Both Statement-1 and Statement and Statement-2 are correct.
Here the Statement -2 is correct explanation of
Statement -1.
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PRADEEP-ELECTROMAGNETIC WAVES-Exercise
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  3. The sun delivers 10^3W//m^2 of electromagnetic flux to the earth's sur...

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  4. The sun delivers 10^3W//m^2 of electromagnetic flux to the earth's sur...

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  5. The electric field associated with an e.m. wave is described by the eq...

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  6. The speed of em wave in the unit of 10^8m//s, in a medium of dielectri...

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  7. The dielectric constant for air is 1.006. The speed of em wave travell...

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  8. A flood light will be covered with filter that transmits red light. Th...

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  9. Assertion: Displacement current is a fictious current and has nothing ...

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  10. Assertion: Environment damage has increased the amount of ozone in the...

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  11. Statement-1 : A changing electric field produces a magnetic field St...

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  12. Assertion: Light can travel in vacuum but sound cannot do so. Reason...

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  13. Assertion: EM wave are transwers in nature. Reason: The electric and...

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  14. Assertion: Like light radiation, thermal radiations are also electroma...

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  15. Assertion: A charge moving in a circular orbit can produce em wave. ...

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  16. Statement-1: Short wave band are used for transmission fo radiowaves t...

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  17. Statement-1: In an em wave, the direction of the magnetic field induct...

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  18. Statement-1: Magnetic field lines cannot start from a point nor end at...

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  19. Statement-1: Out of the following radiations, microwave, ulrtaviolet a...

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  20. Statement-1: Gamma rays are more energetic than X-rays. Statement-2:...

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