Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है
In this Class 10 Science topic from “The Human Eye and the Colourful World,” students learn how white light separates into its constituent colours when it passes through a glass prism. They study that different colours bend by different amounts because their wavelengths and refractive indices differ, forming a spectrum commonly described as VIBGYOR. The topic connects dispersion with the formation of rainbows and helps explain how refraction produces the colourful effects observed in nature.
Hard · Level 1 · 1 questions
TOPIC PRACTICE
Quiz this set
Up to 1 questions from this page. Select your focus, then start.
1 questions
Choose questions
View options
Because their basic bone plan is similar, although their functions may differ
Because all of them enable flight
Because their external forms are exactly identical
Because all of them are digestive organs
Question 1HardLevel 1
Why are the human hand, bat wing, and horse forelimb considered homologous?मनुष्य का हाथ, चमगादड़ का पंख और घोड़े का आगे का पैर समजात क्यों माने जाते हैं?
Correct answer:सही उत्तर:A
The human hand, bat wing, and horse forelimb have different functions—grasping, flying, and walking—but their major bones follow a comparable structural plan. This underlying similarity is consistent with inheritance from a common ancestral limb, followed by modification for different uses. Hence A is correct. B is false because humans and horses do not fly, while C and D confuse structure with appearance or function.मनुष्य का हाथ पकड़ने, चमगादड़ का पंख उड़ने और घोड़े का अग्रपाद चलने में काम आता है, फिर भी तीनों में प्रमुख हड्डियों की मूल योजना समान होती है। यह समानता सामान्य पूर्वज के अंग से विरासत और अलग-अलग कार्यों के लिए हुए संशोधन का संकेत देती है। इसलिए A सही है। B, C और D क्रमशः कार्य, बाहरी रूप और अंग-प्रणाली के बारे में गलत हैं।
Google Analytics helps us understand site usage. Microsoft Clarity records usage interactions after analytics consent. Google may send limited cookie-free signals before your choice. The Live Visitors widget operates independently of this analytics choice; see the privacy policy for its provider and fallback details. Essential site features work without analytics cookies. You can change your choice later in Privacy choices. Privacy policy
