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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The process of pollination, where pollen grains are transferred from the stamen to the pistil, can occur through various agents. Which of the following is an example of entomophily (pollination by insects)? (A) Wind pollination in grasses. (B) Pollen transfer by water currents. (C) Pollen transfer facilitated by bees and other insect pollinators. (D) Self-pollination within a flower’s own stamen and pistil.
सही उत्तर: ग) (C) Pollen transfer facilitated by bees and other insect pollinators.
Option (C) is correct as entomophily specifically refers to the pollination mechanism where insects, like bees, play a critical role in transferring pollen. Wind pollination (A), water currents (B) and self-pollination (D) represent other distinct pollination methods.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements regarding bryophytes is correct? (A) Bryophytes are well-differentiated into root, stem and leaf. (B) They possess a vascular system for efficient water transport. (C) They require an external medium for reproduction as they lack seeds. (D) They can perform photosynthesis effectively due to chloroplasts in their cells.
सही उत्तर: क) (A) Bryophytes are well-differentiated into root, stem and leaf.
Option (C) is correct. Bryophytes are non-vascular plants, meaning they lack a specialized system for transporting water and nutrients. This necessitates reliance on an external medium (like moisture) for reproduction – specifically the formation of spores. Options A, B and D represent features found in vascular plants like ferns or higher plants, not bryophytes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The addition of a small amount of potassium iodide (KI) to solution containing silver nitrate (AgNO₃) results in the formation of silver iodide (AgI), which precipitates out. This is because: (a) Silver ions are more reactive than iodine ions. (b) KI increases the solubility of AgNO₃ in water. (c) KI provides a source of free iodide ions that react with Ag⁺ to form AgI. (d) The reaction produces heat, which favors the formation of AgI.
सही उत्तर: घ) (d) The reaction produces heat, which favors the formation of AgI.
The addition of KI is a classic precipitation reaction where I⁻ ions displace Ag⁺ ions from solution to form insoluble AgI. Options (a), (b) and (d) are incorrect.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes the properties of covalent compounds? (a) They are generally strong electrolytes in water. (b) Their intermolecular forces are primarily due to electrostatic attractions between ions. (c) They often exhibit high melting and boiling points. (d) They typically do not conduct electricity when molten or dissolved in polar solvents.
सही उत्तर: घ) (d) They typically do not conduct electricity when molten or dissolved in polar solvents.
Covalent compounds have weak intermolecular forces (primarily Van der Waals forces), leading to low melting and boiling points and generally poor electrical conductivity. Options (a) and (b) describe ionic compounds, while option (c) describes metallic solids.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The reaction of potassium permanganate (KMnO₄) with sodium carbonate (Na₂CO₃) in acidic solution produces: (a) Carbon monoxide and water (b) Carbon dioxide, water and manganese ions (c) Sodium oxide and carbon dioxide (d) Potassium hydroxide and manganese dioxide
सही उत्तर: ख) (b) Carbon dioxide, water and manganese ions
The reaction of KMnO₄ with Na₂CO₃ in acidic conditions leads to the formation of CO₂, H₂O, and Mn²⁺ ions. Option (a) is incorrect because it doesn't account for the gaseous product. Option (c) is wrong as sodium oxide isn’t produced. Option (d) incorrectly identifies a different product.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If a father has three children, and one is a boy, what are the possibilities for the other two children?
सही उत्तर: ख) Two boys
The question states 'one is a boy'. This doesn't specify which child is a boy. Therefore, any combination of the other two children could be either one or both are boys. The options provided reflect these possibilities.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Consider the series: 2, 4, 8, 16, 30, 64. What number is incorrectly placed in this sequence?
सही उत्तर: घ) 16
The pattern of this series is that each number is the product of two consecutive integers. 2 = 1 * 2; 4 = 2 * 2; 8 = 2 * 4; 16 = 4*4; However 30 does not fit. The correct sequence would be 2, 4, 8, 16, 32, 64.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A and B are partners in a business. A invested Rs. 40,000 and B invested Rs. 60,000. They agreed to share profits equally. If the profit is Rs. 80,000, how much will A receive?
सही उत्तर: ख) Rs. 24,000
The total investment is Rs. 100,000. The profit is shared equally among the two partners. Therefore, A's share of the profit is (1/2) * Rs. 80,000 = Rs. 40,000. Rs. 32,000 is incorrect as it represents half of 80,000 but does not consider that the partners initially invested different amounts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A body falls freely from a height of 49 meters. What is its velocity just before hitting the ground? (a) 7 m/s (b) 14 m/s (c) 21 m/s (d) 28 m/s
सही उत्तर: क) (a) 7 m/s
We can use the equation of motion: v² = u² + 2as, where v is final velocity, u is initial velocity (0 m/s), a is acceleration due to gravity (9.8 m/s²), and s is the distance (49 m). Therefore, v² = 0² + 2 * 9.8 * 49 = 960.4, so v = √960.4 ≈ 31m/s, which isn't among the options. The closest answer would be 21m/s representing an approximation but doesn’t match any of the stated choices.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A current of 2 A flows through a resistance of 10 Ω for 10 seconds. What is the heat generated? (a) 100 J (b) 200 J (c) 500 J (d) 1000 J
सही उत्तर: क) (a) 100 J
The heat generated can be calculated using the formula Q = I²Rt, where I is current, R is resistance, and t is time. Substituting the values: Q = (2 A)² * 10 Ω * 10 s = 4 * 10 * 10 = 400 J. The closest option to this value is 500J but based on assumptions about measurement errors, it's a close estimation
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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