चिकित्सा शिक्षा आयोग (CEE) आयुर्वेद र होमियोप्याथी (BAMS) तयारी
चिकित्सा शिक्षा आयोग (CEE) – आयुर्वेद र होमियोप्याथी (BAMS)
BAMS 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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Which of the following is a reducing agent in the reaction: Zn + CuSO₄ → ZnSO₄ + Cu?
सही उत्तर: ख) Zn
In this reaction, Zinc (Zn) loses electrons and gets oxidized, hence acts as a reducing agent. Copper(II) sulfate (CuSO₄) is oxidized and therefore the reducing agent.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A sound wave has a frequency of 440 Hz and travels through air with a speed of 343 m/s. What is the wavelength (in meters) of this sound wave?
सही उत्तर: क) 0.82
The relationship between wave speed (v), frequency (f), and wavelength (λ) is $v = f imes ext{λ}$, so $ ext{λ} = rac{v}{f}$. Substituting the given values, we get $ ext{λ} = rac{343 ext{ m/s}}{440 ext{ Hz}} imes 1.25= 0.82 ext{ m}$, which is closest to this option.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A simple pendulum has a length of 1 meter and makes one complete oscillation in 2 seconds. What is its maximum angular velocity?
सही उत्तर: ग) 3π rad/s
The period (T) of a simple pendulum is given by $T = 2 imes rac{ ext{Length}}{g}$, where g is the acceleration due to gravity. The angular velocity ($ heta$) at any point in its motion is related to the linear velocity (v) by $ heta = rac{v}{r}$, and v= ωr, so $ heta= rac{ heta_m}{T}$ where $ heta_m$ is maximum angular velocity and T is period. Therefore, $ heta_m = rac{2 imes 1/2}{2} = 0.5 rad/s$. This answer is incorrect as it gives the result for other factors.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A uniform solid sphere of mass M and radius R is rotating with angular speed ω about a vertical axis through its center. A thin layer of the sphere's surface has a temperature T above 0°C. What is the net heat flow (in Watts) out of the sphere?
सही उत्तर: क) 4πMR²T
Since the temperature of the thin layer is above 0°C, it will radiate heat energy into the surrounding environment. However, the sphere as a whole is in equilibrium, meaning the rate at which heat flows out must equal the rate at which heat flows in. The net flow is zero because the sphere maintains thermal equilibrium. The option that looks like heat transfer is incorrect due to the concept of equilibrium.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A Carnot engine operates with a temperature of 50°C at its hot reservoir and a sink temperature of 27°C. If the engine absorbs 1000 J of heat from the hot reservoir in one cycle, what is the work done by the engine during this cycle? (Assume ideal gas behavior)
सही उत्तर: ख) 500 J
The efficiency of a Carnot engine is given by $ rac{W}{Q_H} = rac{Q_C}{Q_H}$, where $W$ is the work done, $Q_H$ is the heat absorbed from the hot reservoir, and $Q_C$ is the heat released to the cold reservoir. In this case, efficiency = 25% or 0.25. Therefore, $0.25 = rac{W}{1000}$, so $W = 250 J$. The most tempting answer (600J) arises from a misunderstanding of the engine's cycle and how heat is handled.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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You are presented with a series of shapes: Square, Circle, Triangle, Square, Circle... What shape comes next?
सही उत्तर: क) Rectangle
The pattern is repeating squares and circles. Therefore, the next shape will be a triangle.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A detective is examining a crime scene. There are four pieces of evidence – A, B, C, and D. The clues suggest the order in which they were discovered is B then C then A. If the correct order to solve the case requires D to be found before A, what must have happened?
सही उत्तर: क) A was moved deliberately
The question presents a sequence of evidence discovery (B-C-A). The need for 'D before A' indicates an alteration or new piece of information that changes the established order. Moving A, misplacing C, and examining B first are all possible scenarios given the change in sequence requirement.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a Mental Agility Test, the following sequence is presented: A, D, G, J, _____. What is the next letter in the sequence?
सही उत्तर: क) M
The sequence consists of letters increasing by 3 (A+3=D, D+3=G, G+3=J). Therefore, the next letter is J+3 = R.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The presence of a swim bladder in fish primarily contributes to which of the following?
सही उत्तर: ख) B) Precise buoyancy control aiding movement.
Option B is correct; a swim bladder allows fish to regulate their depth in the water column by controlling their buoyancy, which significantly impacts their movement and survival. Options A, C, and D describe functions of other biological systems.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The lateral line system in fish detects changes in which of the following?
सही उत्तर: ख) B) Water pressure – allowing them to navigate.
Option B accurately describes the function of the lateral line system; it detects vibrations and pressure changes in the surrounding water, providing information about movement and obstacles. Options A, C, and D are incorrect as they relate to other sensory systems.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।