चिकित्सा शिक्षा आयोग (CEE) पारामेडिकल (B.Pharm, BPH, BMLT, BMIT, B.Optom) तयारी
चिकित्सा शिक्षा आयोग (CEE) – पारामेडिकल (B.Pharm, BPH, BMLT, BMIT, B.Optom)
Paramedical Bachelor Entrance · Medical Education Commission – CEE
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
MBBS/BDS/Nursing 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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A particle of mass 'm' is undergoing simple harmonic motion with a period 'T'. If the angular frequency is doubled and the amplitude is halved, then the new time period will be:
सही उत्तर: घ) T/2
The angular frequency ω = 2π/T. Doubling ω gives 2ω = 4π/T. The period T' is given by T' = 2π/ω = 2π / (4π/T) = T/2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The power dissipated in a series RC circuit, where R = 100 ohms and C = 10⁻⁶ F, when a voltage V varies with time as $V(t) = Vo sin(rac{2 imes ext{π}}{T} t)$ is given by:
सही उत्तर: ख) $rac{Vo^2}{R C}$
Power dissipated in an RC circuit is given by $P = rac{V^2}{R}$, where V is the voltage. Here, $V = Vo sin(rac{2 imes ext{π}}{T} t)$ and R= 100 ohms. Therefore, the power dissipated is $rac{Vo^2}{R}$.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The enthalpy change (ΔH) for a reaction is negative. What does this indicate about the heat flow during the reaction?
सही उत्तर: ख) Heat is released into the surroundings
A negative enthalpy change (ΔH) indicates an exothermic reaction, meaning heat is released *into* the surroundings. The most tempting answer, 'heat is absorbed,' reflects an endothermic reaction where heat is taken in.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If P × Q means P is the father of Q, P + Q means P is the sister of Q, and P − Q means P is the brother of Q, find the next letter in the series: B, E, H, K, N, ?
सही उत्तर: क) P
The letters are given by an alphabetical sequence. B + 1 = C, C+1=D, D+1=E...and so on; thus the next letter in the series is P.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A calendar repeats its pattern of 13 months in approximately 19 years. In which year will the calendar of 2019 be repeated exactly?
सही उत्तर: क) 2032
The calendar repeats every 13 months, so to find the next repetition after 2019, we need to calculate 13 * (2019 - year of last repetition) where 'year of last repetition' is 2008. The number of years between 2008 and 2019 is 11. Then the exact repeating year would be 2019 + 13, which gives 2032. This makes 2032 the next year for the calendar to repeat.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a race, A beats B, C beats D, and E beats F. If A beats B, C beats D, and E beats F, who is the winner if A fights against C, B fights against D, and E fights against F?
सही उत्तर: क) A
The correct answer is ‘A’. The question presents a series of individual comparisons. Since A defeats B and C defeats D, it logically follows that if A competes with C, A will win. The other options (C, E, F) are incorrect as they do not follow the established ranking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A particle moves with a constant acceleration of 5 m/s² along a straight line. At time t=0, its initial velocity is 2 m/s and its position is 1 meter. What will be the particle’s position at time t=3 seconds?
सही उत्तर: ख) 26 meters
We can use the kinematic equation: x = x₀ + v₀t + (1/2)at². Plugging in the values, we get x = 1 + 2 * 3 + (1/2) * 5 * 3² = 1 + 6 + 22.5 = 29.5 meters. However, there seems to be an error as none of the options matches this answer. Let’s re-examine the problem as it is. Given: a=5 m/s², v₀=2 m/s, t=3 s, x₀ =1m , we need to find x. Using the formula for displacement with constant acceleration: x = x₀ + v₀t + (1/2)at² Substituting values, x = 1 + (2)(3) + (1/2)(5)(3²) = 1 + 6 + (1/2)(5)(9) = 1 + 6 + 22.5 = 29.5 Since there is an error in the provided options, a corrected option would be 29.5m. The closest answer among available choices will be given by selecting from options, if it were present.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The specific heat at constant volume (Cv) for a certain gas is 80 J/kg·K. If the ratio of specific heats, Cp/Cv, is equal to 1.5, what is the specific heat at constant pressure (Cp)?
सही उत्तर: क) 120 J/kg·K
We are given Cp/Cv = 1.5 and Cv = 80 J/kg·K. Therefore, Cp = 1.5 * Cv = 1.5 * 80 J/kg·K = 120 J/kg·K. The other options are calculated incorrectly.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A capacitor with a capacitance of 2 µF is charged to a voltage of 40V. What is the energy stored in this capacitor?
सही उत्तर: क) 80 mJ
The energy (E) stored in a capacitor is given by E = 1/2 * C * V^2, where C is the capacitance and V is the voltage. In this case, E = 1/2 * 2 * 10^-6 F * (40V)^2 = 320 x 10^-6 J = 320 mJ. The other options are incorrect because they do not correctly apply the formula or use the given values.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The hydrolysis of which of the following esters will produce acetic acid? a) Ethyl acetate b) Methyl propanoate c) Propyl formate d) Butyrate
सही उत्तर: क) a) Ethyl acetate
Ethyl acetate (CH₃COOCH₂CH₃) undergoes hydrolysis to form acetic acid (CH₃COOH) and ethanol (CH₃CH₂OH). The other ester compounds would yield different carboxylic acids upon hydrolysis.
💬 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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