NEET UG Oscillations and Waves: Oscillations – Chapter Test
NEET UG Oscillations and Waves: Oscillations – Chapter Test is an online chapter test in the NEET UG pattern, covering Oscillations and Waves. Attempt it on SeatBeat with a timer like the real exam, then see a detailed solution for every question and your score and weak-topic analysis.
Topics in this test
| Topic | Questions |
|---|---|
| Oscillations and Waves | 20 |
Difficulty: 7 medium · 13 hard
Oscillations MCQ questions with answers
The first 3 of 20 questions. Unlock the series for the rest, each with a solution.
Q1. Assertion (A): A given block oscillating on an ideal spring has the same time period whether the spring is horizontal or hanging vertically. Reason (R): The weight of the block only shifts the equilibrium position and does not alter the effective force constant of the spring. Choose the correct option.
अभिकथन (A): एक आदर्श स्प्रिंग पर दोलन करते किसी दिए गए गुटके का आवर्तकाल समान होता है चाहे स्प्रिंग क्षैतिज हो या ऊर्ध्वाधर रूप से लटकी हो। कारण (R): गुटके का भार केवल साम्यावस्था स्थिति को विस्थापित करता है और स्प्रिंग के प्रभावी बल नियतांक को परिवर्तित नहीं करता। सही विकल्प चुनिए।
- A. Both A and R are true but R is not the correct explanation of A / A और R दोनों सत्य हैं परन्तु R, A की सही व्याख्या नहीं है
- B. A is false but R is true / A असत्य है परन्तु R सत्य है
- C. Both A and R are true and R is the correct explanation of A / A और R दोनों सत्य हैं तथा R, A की सही व्याख्या है
- D. A is true but R is false / A सत्य है परन्तु R असत्य है
Solution
Gravity merely produces a constant extension that relocates the equilibrium point; measured from this new equilibrium the restoring force is still −kx, so T = 2π√(m/k) is unchanged. Both A and R are true and R correctly explains A.
गुरुत्व केवल एक नियत विस्तार उत्पन्न करता है जो साम्यावस्था बिंदु को स्थानांतरित कर देता है; इस नई साम्यावस्था से मापने पर प्रत्यानयन बल अभी भी −kx है, अतः T = 2π√(m/k) अपरिवर्तित रहता है। A और R दोनों सत्य हैं तथा R, A की सही व्याख्या करता है।
Q2. A particle executes simple harmonic motion of amplitude A. At what displacement from the mean position are its kinetic energy and potential energy equal?
कोई कण आयाम A की सरल आवर्त गति करता है। माध्य स्थिति से किस विस्थापन पर इसकी गतिज ऊर्जा और स्थितिज ऊर्जा बराबर होती हैं?
- A. A/√2
- B. A√3/2
- C. A/√3
- D. A/2
Solution
KE = ½mω²(A²−x²) and PE = ½mω²x². Setting them equal gives A²−x² = x², so x² = A²/2 and x = A/√2.
गतिज ऊर्जा = ½mω²(A²−x²) तथा स्थितिज ऊर्जा = ½mω²x²। इन्हें बराबर रखने पर A²−x² = x², अतः x² = A²/2 और x = A/√2।
Q3. The total mechanical energy of a particle in simple harmonic motion is proportional to:
सरल आवर्त गति करते किसी कण की कुल यांत्रिक ऊर्जा किसके समानुपाती होती है?
- A. the amplitude / आयाम के
- B. the reciprocal of the amplitude / आयाम के व्युत्क्रम के
- C. the square of the amplitude / आयाम के वर्ग के
- D. the square root of the amplitude / आयाम के वर्गमूल के
Solution
Total energy E = ½mω²A², which is proportional to the square of the amplitude (and to the square of the frequency).
कुल ऊर्जा E = ½mω²A², जो आयाम के वर्ग के (तथा आवृत्ति के वर्ग के) समानुपाती होती है।
Frequently asked questions
How many questions are in the NEET UG Oscillations and Waves: Oscillations – Chapter Test?
20 questions for 20 marks, to be answered in 20 minutes.
Is there negative marking in the NEET UG Oscillations and Waves: Oscillations – Chapter Test?
Yes — 0.25 marks are deducted for each wrong answer, as in the real exam pattern.
Which topics does the NEET UG Oscillations and Waves: Oscillations – Chapter Test cover?
Oscillations and Waves (20 questions).
Is the NEET UG Oscillations and Waves: Oscillations – Chapter Test free?
It is part of the NEET UG 2027 Mock Test Series (134 tests, ₹299). You can first try Biology in Human Welfare – Topic Test for free.
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