अ) केवळ रेडिओ आणि दूरदर्शन प्रसारणाच्या अँटेनाद्वारे
ब) केवळ त्यांच्या आजूबाजूपेक्षा जास्त तापमान असलेल्या पदार्थांद्वारे
क) केवळ तप्त-लाल पदार्थांद्वारे
ड) सर्व पदार्थांद्वारे
योग्य उत्तर: ड
The Ministry of Education has launched the SATHEE initiative in association with IIT Kanpur to provide free guidance for competitive exams. SATHEE offers a range of resources, including reference video lectures, mock tests, and other resources to support your preparation. Please note that participation in the SATHEE program does not guarantee clearing any exam or admission to any institute.
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