NCERT Solutions for Class 9 Science - Test 4
UP Board Class 9 Science Test - 4
Class 9 Science Chapter 4 - Detailed Solutions for Better Understanding
Boost your exam preparation with GKschools' NCERT Solutions for Class 9 Science Test 4. Our detailed and easy-to-follow solutions for Chapter 4 help students clarify important science concepts and excel in their exams. The PDF solutions are designed to simplify complex topics and provide step-by-step explanations, ensuring students can revise efficiently. Download the study material now and gain a comprehensive understanding of Class 9 Science for the upcoming exams.
Que 51: केनाल किरणें किसका किरण पूँज है ?
[A] प्रोटॉन
[B] इलेक्ट्रॉन
[C] न्यूट्रॉन
[D] कण
Show Answer
Correct Answer :
[A] प्रोटॉन
Que 52: न्यूट्रॉन का सापेक्ष आवेश है?
[A] +1
[B] -1
[C] 0
[D] इनमें कोई नहीं
Show Answer
Correct Answer :
[C] 0
Que 53: कोशिका की खोज कब हुई ?
[A] 1665 ई ०
[B] 1674 ई ०
[C] 1855 ई ०
[D] 1940 ई ०
Show Answer
Correct Answer :
[A] 1665 ई ०
Que 54: किस प्रकार के ऊतकों की क्रियाशीलता के कारण पौधों में । वार्षिक वलय बनते हैं ?
[A] संवहन ऊतक
[B] पार्श्व विभज्योतक
[C] शीर्षस्थ विभज्योतक
[D] दृढ़ ऊतक
Show Answer
Correct Answer :
[B] पार्श्व विभज्योतक
Que 55: परमाणु की द्रव्यमान संख्या निर्धारित करने वाला कण है
[A] इलेक्ट्रॉन
[B] न्यूट्रॉन
[C] A- कण
[D] B- कण
Show Answer
Correct Answer :
[B] न्यूट्रॉन
Que 56: तारक केन्द्रक का कार्य है –
[A] DNA संश्लेषण
[B] तर्कु ‘ निर्माण
[C] श्वसन
[D] जनन
Show Answer
Correct Answer :
[B] तर्कु ‘ निर्माण
Que 57: निम्न में कौन फ्लोएम का भाग है ?
[A] ट्रैकीड
[B] वाहिका
[C] चालनी नलिका
[D] इनमें कोई नहीं
Show Answer
Correct Answer :
[C] चालनी नलिका
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