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 statements accurately describes mycorrhizae? a) A parasitic relationship between fungi and plant roots. b) A mutualistic symbiotic association between fungi and plant roots, enhancing nutrient absorption for the plant. c) A pathogenic infection caused by fungal spores damaging plant tissues. d) Competition between fungi and plant roots for water resources.
सही उत्तर: ख) b) A mutualistic symbiotic association between fungi and plant roots, enhancing nutrient absorption for the plant.
Mycorrhizae represent a mutually beneficial relationship where the fungus enhances nutrient uptake (primarily phosphorus) from the soil for the plant in exchange for carbohydrates. Options a and c describe parasitic or pathogenic interactions, while d is about competition.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The vascular bundles in a young bamboo shoot show cambium activity. This indicates that the plant is undergoing: a) Primary growth only b) Secondary growth only c) Both primary and secondary growth d) Apical dominance
सही उत्तर: ग) c) Both primary and secondary growth
Cambium activity signifies the presence of vascular cambium, which is responsible for secondary growth – an increase in girth. Options a and d are incorrect as they describe specific aspects of primary growth or apical dominance.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The cyathium inflorescence is a unique floral arrangement found in certain plants. What is the primary characteristic that defines this type of inflorescence?
सही उत्तर: ग) A structure resembling an artichoke, with ‘mutia’ (flower clusters) arising from a central axis
The correct answer is ‘A structure resembling an artichoke, with ‘mutia’ (flower clusters)’ because the cyathium exhibits this distinctive appearance. The other options describe different inflorescence types – a single flower head, spike or panicle.”}],
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A series of letters is given: A, C, E, G, _, ?
सही उत्तर: क) H
The sequence consists of consecutive odd-numbered letters in the alphabet. Thus, the next letter should be ‘I’.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following options correctly identifies the odd one out?
सही उत्तर: क) Gold
Bronze is an alloy, while gold, silver, and platinum are pure metals. Therefore, ‘Bronze’ is the correct answer.”} , {
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A particle is undergoing simple harmonic motion with a period of 2 seconds. At t = 0, its displacement is x = 5 cm and its velocity is v = -10 cm/s. What is the angular frequency (ω) of the oscillation?
सही उत्तर: ग) 4π rad/s
The period T = 2π/ω. We are given T=2 seconds, so ω = 2π/T = 2π/2 = π rad/s. Option A is incorrect as it uses the wrong value for π. Option C and D are incorrect because they don't match this calculation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A uniform rod of length L and mass M is placed in equilibrium on a smooth horizontal surface. What is the angle θ that the rod makes with the horizontal?
सही उत्तर: ख) tan⁻¹(Mg/Lg)
The rod is in equilibrium, so the forces acting on it must balance. The weight of the rod acts vertically downwards at its center (L/2). For equilibrium, the horizontal component of the weight must equal the friction force (f) acting on the rod. Therefore, f = Mg sin θ and tan θ = Mg/Lg, leading to tan⁻¹(Mg/Lg). Options A, C, and D are incorrect because they have an incorrect orientation for the forces or use the wrong ratios.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 5 kg object is pushed horizontally across a table with a force of 10 N for a distance of 2 meters. The coefficient of kinetic friction between the object and the table is 0.2. What is the work done against friction?
सही उत्तर: घ) 40 Joules
The force of friction is f = μk * N = 0.2 * 5 kg * 9.8 m/s² = 9.8 N. The work done against friction is W = f * d = 9.8 N * 2 m = 19.6 Joules, closest to 20 Joules. Options 1 and 2 are incorrect as they do not calculate the correct amount of frictional force.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A particle moves with constant acceleration 'a' along a straight line. The distance traveled in time 't' is 's'. If the initial velocity is ‘u’, then which of the following statements is correct?
सही उत्तर: क) s = ut + at² / 2
The equation of motion for constant acceleration is s = ut + (1/2)at². Therefore, option A is correct. Option B is incorrect because it doesn't include the time component. Options C and D are incorrect as they don't represent the standard equation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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All squares in a chessboard have sides that are equal. The side of a square is measured in units of length. A 3x3 chessboard has 9 such squares. How many squares of all sizes can be found on an 8x8 chessboard?
सही उत्तर: घ) 649
The question asks about the total number of squares (of any size) on an 8x8 board. There are 64 1x1 squares, 25 2x2 squares, 16 3x3 squares, 9 4x4 squares, 4 5x5 squares and 1 6x6 square. Adding these up gives us 64 + 25 + 16 + 9 + 4 + 1 = 120 which is not among the choices. The correct answer is derived by calculating the number of squares of all possible side lengths. Considering squares with sides from 1 to 8, we can form a total of 64+25+16+9+4+1=120 squares. However, since one of the options is given as 649, it may be a typo and assuming there’s an error in the question or options, let's re-evaluate. The number of possible squares is 8 * 8 = 64 (1x1). Adding 2x2 -> 4*4=16, 3x3 -> 2*2=4... We have: 1x1 = 64 , 2x2 = 16, 3x3 = 9, 4x4 = 4, 5x5 = 1, 6x6 = 1, 7x7 = 1 and 8x8 = 1. So 64+16+9+4+1+1=95. None of the options are accurate to the calculation, but 649 is likely a typo.
💬 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।