चिकित्सा शिक्षा आयोग (CEE) एमबीबीएस प्रवेश परीक्षा तयारी
चिकित्सा शिक्षा आयोग (CEE) – एमबीबीएस प्रवेश परीक्षा
CEE – MBBS 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 shapes cannot be formed by connecting all given points? (Points: A(1, 2), B(3, 4), C(5, 2), D(3, 0))
सही उत्तर: क) Triangle
To determine which shape can be formed, we need to analyze the coordinates of each point. The given points form a square with side length of sqrt(4) = 2. Thus the correct answer is Square.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a family, a grandfather, his wife, their son, and his grandson form a family. If the grandfather is 60 years old and the grandson is 8 years old, what is the age of the wife?
सही उत्तर: ख) 38
The grandson is 8 years old, and the grandfather is 60 years old. The son must be between these ages. Since the son is the father of the grandson, the son's age is 60 - 8 = 52. Now we know the wife must be younger than the grandfather but older than the son. This makes 42 the correct answer. The other options are incorrect because they don't align with the familial relationships described.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of budding is observed in:
सही उत्तर: ख) B) Amoeba
Budding is a form of asexual reproduction where an outgrowth (bud) develops from the side of the parent organism, eventually detaching to become a new individual. Yeast exhibits budding prominently; Amoeba utilizes pseudopodia, Hydra uses multiple buds, and Planaria reproduces through fragmentation. Thus, yeast is correct.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following correctly describes the process of osmosis in animal cells?
सही उत्तर: ख) B) Movement of water from a region of low solute concentration to high solute concentration.
Osmosis is defined as the net movement of solvent (water in this case) from a region of low solute concentration to a region of high solute concentration through a semi-permeable membrane. Option A accurately describes this process; options B and C describe active transport or lack of movement respectively. Option D is incorrect as osmosis involves movement due to concentration differences.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following reagents can convert alkenes into alcohols? (2021)
सही उत्तर: ख) NaOH
Hydrobromic acid (HBr) is a strong acid that reacts with alkenes via an anti-Markovnikov addition to yield alcohols. The other options, while involved in chemical reactions, do not directly facilitate alkene hydration to form alcohols.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The decomposition reaction of potassium chlorate (KClO₃) can be represented as 4KClO₃(s) → 3KClO₄(s) + Cl₂(g). If 20 grams of KClO₃ are heated, what mass of chlorine gas (Cl₂) will be produced? (K = 39.1 g/mol, Cl = 35.5 g/mol, O = 16.0 g/mol)
सही उत्तर: ख) 4.9g
The balanced equation shows a 1:1 molar ratio between KClO₃ and Cl₂. We calculate the moles of KClO₃ (20 g / 39.1 g/mol = 0.512 mol). Then, using the mole ratio, we get 0.512 mol of Cl₂. Finally, we convert to grams (0.512 mol * 35.5 g/mol = 18.1 g). The most tempting incorrect answer is '7.8g' as it’s close but based on a misunderstanding of the reaction stoichiometry.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A capacitor of 8 μF is charged to a potential difference of 600 V and then connected across a resistance of 10 Ω. The temperature of the room is 25°C. What is the energy dissipated in the resistor?
सही उत्तर: क) 48 J
The energy dissipated in the resistor during charging and discharging is given by E = V² / R, where V is the potential difference and R is the resistance. Therefore, E = (600 V)² / 10 Ω = 360000 J or 360 kJ. The option ‘96 J’ is very low, representing a misunderstanding of the energy calculation
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A wire carrying a current of 5 A experiences a magnetic force when placed in a magnetic field. If the force is 10 N and the angle between the wire and the magnetic field is 30 degrees, what is the magnitude of the magnetic field?
सही उत्तर: क) 0.5 T
The magnetic force on a current-carrying wire in a magnetic field is given by F = I L Sin θ, where I is the current, L is the length of the wire, and θ is the angle between the wire and the magnetic field. Therefore, 10 N = 5 A * L * sin(30°) => L = 4 m. The question requires a value for B (magnetic field), which doesn't directly appear in this formula, therefore the question must have been written incorrectly
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A uniform electric field of 3 x 10^3 N/C is applied along the positive x-axis. A point charge of +2 μC is located at the origin (0,0). What is the magnitude of the force on this charge?
सही उत्तर: क) 6 x 10^-9 N
The force on a charge in an electric field is given by F = qE, where q is the charge and E is the electric field strength. Therefore, F = (2 x 10^-6 C) * (3 x 10^3 N/C) = 6 x 10^-3 N. The closest answer to this value is 5 x 10^-8 N which would result from a misinterpretation of the charges involved
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following best describes the function of CAM (Crassulacean Acid Metabolism) photosynthesis? (a) It occurs exclusively during daylight hours. (b) It involves carbon fixation during the day and sugar production at night. (c) It relies on high rates of oxygen consumption. (d) It is a type of photosynthesis found only in aquatic plants.
सही उत्तर: ख) (b) It involves carbon fixation during the day and sugar production at night
CAM photosynthesis is characterized by opening stomata at night to fix carbon dioxide and then using this stored carbon during the day for photosynthesis. This minimizes water loss under hot, dry conditions, making it efficient in succulents like cacti and certain herbs.
💬 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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