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Statement-I : Television signals are rec...

Statement-I : Television signals are received through sky-wave propagation
Statement-II : The ionosphere reflects electromagnetic waves of frequencies greater than a certain critical frequency.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
D
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Statement-1: Television signals are received through skywave propagation. Statement-2: The ionosphere reflects electromagnetic waves of frequencies greater than a certain critical requency.

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ERRORLESS -WAVE OPTICS-SET
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  2. Following figures shows sources S1 and S2 that emits light of waveleng...

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  3. In a Young's double slit experimental arrangement shown here, if a mic...

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  4. In the set up shown in figure, the two slits S1 and S2 are not equidis...

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  5. The intensity ratio of two coherent sources of light is p. They are i...

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  6. Three waves of equal frequency having amplitudes 10mum, 4mum, 7mum arr...

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  7. Four different independent waves are represented by (i) y(1) = a(1) ...

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  8. A beam of light consisting of two wavelength 650nm and 520nm is used t...

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  9. Two identical radiators have a separation of d=lambda//4 where lambda ...

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  10. In Young’s double slit experiment, the 8 th maximum with wavelength la...

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  11. Light of wavelength 500nm is used to form interference pattern in Youn...

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  12. Two coherent sources of equal intensity produce maximum intensity of 1...

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  13. The path difference between two interfering waves of equal intensities...

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  14. In a Young's double slit experiment, I0 is the intensity at the centra...

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  15. In a Fresnel’s diffraction arrangement, the screen is at a distance of...

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  16. If n represents the order of a half period zone, the area of this zone...

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  17. A screen is placed 50 cm from a single slit, which is illuminated with...

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  18. In Young's double slit experiment, the fringes are displaced index 1.5...

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  19. Two waves of equal amplitude and frequency interfere each other. The r...

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  20. In Young's double-slit experiment , we get 60 fringes in the field of ...

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