Answer the following questions
15. (a) Long distance radio broadcasts use short-wave bands. Why?
Long distance radio broadcasts use short-wave bands as these are refracted by the ionosphere.
SC asks CBSE to protect students affected by OSM evaluation in admissions
CBSE Class 12 Compartment Result 2026 LIVE: 12th supplementary marksheet out at results.digilocker.gov.in
CBSE Class 12 supplementary results 2026 out; 53.08% students pass
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