ദൃശ്യപ്രകാശം സഞ്ചരിക്കുന്നത് ഏത് തരംഗങ്ങളായിട്ടാണ്?
Aഅനുപ്രസ്ഥ തരംഗം
Bഹ്രസ്വ തരംഗ
Cഅനുദൈർഘ്യ തരംഗം
Dദീർഘ തരംഗം
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