चिकित्सा शिक्षा आयोग (CEE) बीडीएस प्रवेश परीक्षा तयारी
चिकित्सा शिक्षा आयोग (CEE) – बीडीएस प्रवेश परीक्षा
CEE – BDS 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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The refractive index of glass is 1.5 for light travelling parallel to its surface. What is the angle of minimum deviation?
सही उत्तर: ग) 60°
The formula for the angle of minimum deviation (δ) is δ = A sin(θ/2), where A is the refractive index and θ is the angle of incidence. At minimum deviation, the bent ray passes through the principle focus of the lens. Thus, δ= 45° is correct. Options 30°, 60°, and 90° are incorrect because they don't satisfy the conditions for minimum deviation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary function of lenticels in woody stems is: (a) Photosynthesis (b) Water absorption (c) Gas exchange (d) Nutrient transport
सही उत्तर: ग) (c) Gas exchange
Lenticels are small pores in the bark of woody stems that facilitate gas exchange (oxygen uptake for respiration and carbon dioxide release) between the internal tissues and the atmosphere. They do not perform photosynthesis, absorb water, or transport nutrients.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The phenomenon of 'geitonogamy' involves: (a) Pollination between flowers on different plants. (b) Self-pollination within a single flower. (c) Cross-pollination between flowers on the same plant. (d) Pollination by wind or insects.
सही उत्तर: घ) (d) Pollination by wind or insects.
Geitonogamy specifically refers to pollination between flowers of the same plant, even if they are not directly connected. This contrasts with cross-pollination (different plants) and self-pollination (within a flower).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes the role of stomata in plant physiology? (a) They primarily facilitate the absorption of nutrients from the soil. (b) They regulate gas exchange (CO2 intake and O2 release) and transpiration. (c) They are involved in water storage within the leaf tissue. (d) They exclusively contribute to photosynthesis by converting light energy into chemical energy.
सही उत्तर: ख) (b) They regulate gas exchange (CO2 intake and O2 release) and transpiration.
Stomata play a crucial role in regulating gas exchange, allowing CO2 uptake for photosynthesis and O2 release. This also facilitates transpiration – water loss from the plant. The other options describe incorrect functions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A farmer has a fox, a chicken, and a bag of grain. He needs to transport them across a river using a boat that can only carry him and one other item at a time. If he leaves the fox and chicken together, the fox will eat the chicken; if he leaves the chicken and grain together, the chicken will eat the grain. How does he get everything safely across the river?
सही उत्तर: क) First take the fox, then the chicken, then the grain.
The farmer must first take the grain across the river. Then he returns alone. Next, he takes the fox across. Then, he brings the grain back to the original side. Finally, he takes the chicken across and is done.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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From a point X, a line is drawn to intersect two parallel lines L and M. The angles formed at the intersection with line L are 60° and 120°. What is the measure of the angle between the two parallel lines?
सही उत्तर: क) 60°
When a transversal intersects two parallel lines, the angles formed on the same side add up to 180 degrees. The given angles are 60° and 120°. This is incorrect because we have not been provided with an angle in this question. We need to find out what the true angles are formed at the intersection of line X, L, M so that the answer is correct.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If ABC is coded as 123, DEF is coded as 456, and GHI is coded as 789, then what is the code for JKL?
सही उत्तर: क) 012
The letters are simply assigned numerical values in order. A=1, B=2, C=3 and so on. Therefore, JKL would be 102.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If LION is coded as BZOR, how is TIGER coded?
सही उत्तर: क) CFSGV
The code replaces each letter with its subsequent letter in the alphabet. ‘L’ becomes ‘B’, ‘I’ becomes ‘Z’, ‘O’ becomes ‘O’, and ‘N’ becomes ‘R’. Therefore, ‘TIGER’ would be coded as 'FSVHG'.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary source of testosterone within the male human testes is:
सही उत्तर: क) Leydig cells
Leydig cells, located in the interstitial space surrounding the seminiferous tubules, are responsible for synthesizing and secreting testosterone. The other cell types play supporting roles within the testes but do not directly produce this hormone.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Long-distance running relies on the characteristics primarily found in which type of muscle fiber?
सही उत्तर: ख) Slow twitch fibers
Slow twitch (Type I) muscle fibers are characterized by a high mitochondrial content and numerous capillaries. This provides them with the capacity for sustained aerobic respiration, allowing them to generate energy for prolonged periods of activity – crucial for endurance athletes. Fast twitch fibers rely on anaerobic metabolism.
💬 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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