मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · २,०३९ प्रश्न
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
CEE प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The concentration of H₂SO₄ in 1 M H₂SO₄ aqueous solution is approximately:
सही उत्तर: घ) D) 4 M
H₂SO₄ is a strong diprotic acid, meaning it dissociates completely into two hydrogen ions per molecule. Therefore, the concentration of H⁺ ions will be twice that of the initial solution’s concentration: 1M * 2 = 2M.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following solutions will exhibit a neutral pH?
सही उत्तर: घ) D) Solution containing NH₄Cl
Acetic acid (CH₃COOH) is a weak organic acid that, when dissolved in water, undergoes hydrolysis to produce hydronium ions and acetate ions, resulting in a slightly acidic solution. Sodium hydroxide (NaOH) is a strong base which produces hydroxide ions, leading to alkaline conditions. HCl and NH₄Cl are both acids but their reactions with water don’t directly create neutral pH.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If ‘+’ means multiply, ‘–’ means divide and ‘×’ means add, then what is the value of (3 + 4) × 2 – 1?
सही उत्तर: क) 11
Following the rules: (3 + 4) × 2 – 1 = (7) × 2 – 1 = 14 - 1 = 13. The other options are incorrect because they misapply the operations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If A=1, B=2, C=3, D=4, E=5, F=6 then what is the value of ‘CF’?
सही उत्तर: क) 8
‘CF’ means C (3) and F (6). Therefore, CF = 3 + 6 = 9. The other options are incorrect because they use the wrong letters.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man has Rs 500. He spends Rs 200 on books and Rs 150 on clothes. He then gives Rs 50 to charity. How much money is left with him?
सही उत्तर: क) 100
He starts with Rs 500. Spends Rs 200 + Rs 150 = Rs 350. Gives away Rs 50, so he has 500 - 350 - 50 = Rs 100 left. The options are simply the different amounts he spent or gave away.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If ‘ABC’ means Add, ‘BCD’ means Subtract and ‘CAR’ means Multiply, what is the result of ‘BCA’?
सही उत्तर: क) 5
‘BCA’ represents B (Subtract) C (Add) A (Multiply). So, it's 6 - 3 + 2 = 5. The other options are incorrect because they misinterpret the operations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a sequence: 1, 4, 9, 16, 36, ?
सही उत्तर: क) 49
The sequence is squares of integers (1^2, 2^2, 3^2, 4^2, 6^2). The next number should be 7^2 = 49. Options 64, 81 and 100 are all perfect squares but not in the sequence.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A merchant buys a saree for Rs 1800 and sells it in two installments. He sells the first installment for Rs 900 and the second installment for Rs 700. What is his average profit percentage?
सही उत्तर: क) 5%
The total cost price is Rs 1800. The total selling price is Rs 900 + Rs 700 = Rs 1600. The loss is Rs 1800 - Rs 1600 = Rs 200. The average profit percentage is (Profit/CP) * 100 = (200/1800)*100 = 11.11%. The most tempting option, 10%, is wrong because it doesn't account for the calculated loss before calculating the average.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A particle is subjected to a force F = (kt)i + (kt)j, where k=1 N/m is a constant. Calculate the work done by this force in moving the particle from (0, 0) to (2 m, 3 m).
सही उत्तर: क) 6 Nm
This question tests understanding of work done and vector calculus. Work is defined as the dot product of force and displacement: W = F • d. Here, W = (kt)i • (2m i + 3m j) + (kt)j • (2m i + 3m j) = 2km² + 3km². Substituting k=1 N/m, we get W=2m² + 3m² = 5m², which is equivalent to 5 Nm. The most tempting incorrect option of 6Nm comes from a mistake in applying the dot product.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Two waves are given by y₁ = A sin(ωt + π/3) and y₂ = A sin(ωt - π/3). What is the phase difference between the two waves?
सही उत्तर: ख) π/3 radians
This question examines wave superposition and phase differences. The given equations represent sine waves with a common amplitude A and angular frequency ω. Comparing the terms in the arguments of the sine functions, we see that y₂ is shifted by π/3 relative to y₁. This represents a phase difference of π/3 radians. The incorrect options are based on misinterpreting how wave phases relate to their equations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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