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
-
The following reaction represents a redox process: CH₃COOH + 2N₂O → CO₂ + (CN)₂ + 3H₂O. Which of the following statements accurately describes this reaction?
सही उत्तर: क) Reduction of Nitrous Oxide
In this reaction, nitrous oxide (N₂O) is reduced to cyanamide ((CN)₂) while acetic acid (CH₃COOH) is oxidized. The change in oxidation states confirms the redox process. The other options are incorrect because they do not accurately describe the transformation of reactants and products.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A group of students are seated in a circle. John sits next to Mary and David. Sarah sits next to John. If there are 7 students in total, how many students sit between Mary and David?
सही उत्तर: घ) 5
Since John is sitting between Mary and David, we can represent them as M-J-D (or the reverse). Sarah sits next to John. With 7 students in total, this arrangement creates a circular group. The number of people between Mary and David will always be 3.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The characteristic gritty texture observed in the edible pulp of pear and guava fruits is primarily due to the presence of: (a) Cellulose (b) Sclerenchyma cells (c) Stone Cells (Druses) (d) Parenchyma cells
सही उत्तर: ग) (c) Stone Cells (Druses)
Stone cells, also known as druses, are calcium carbonate crystals that give fruits like pear and guava their distinctive gritty texture. The other options represent different tissue types with different functions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The archespore mother cell in a sporophyte undergoes meiosis to produce haploid cells, which differentiate into: (a) Gametocytes (b) Pollen grains (c) Microspores (d) Megaspores
सही उत्तर: घ) (d) Megaspores
The archespore mother cell is a specialized cell that undergoes meiosis to produce microspores, which are the male gametophytes in gymnosperms. Options (a), (b), and (d) relate to different types of spores or gametes produced in other plant groups.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In a cross between two plants with genotypes AaBbCc and AaBbCc, what proportion of the F2 generation will have the genotype AabbCC? (a) 1/8 (b) 3/8 (c) 1/4 (d) 9/16
सही उत्तर: ख) (b) 3/8
With independent assortment, each gene segregates independently during gamete formation. The probability of obtaining a specific genotype from this trihybrid cross is calculated based on the probabilities of each allele combining. 1/8 accurately represents this outcome (one out of eight possible combinations). Options (b), (c) and (d) are incorrect proportions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following best describes the primary function of root hairs? (a) Photosynthesis (b) Nutrient Absorption (c) Water Storage (d) Structural Support
सही उत्तर: ख) (b) Nutrient Absorption
Root hairs are highly specialized epidermal cells that significantly increase the surface area for water and mineral absorption from the soil, which is their primary function. Options (a), (c), and (d) represent other plant functions or structural components.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The phenomenon where cells in a plant embryo differentiate into different types of tissues during seed development is called: (a) Opisthoglosson (b) Placentation (c) Endosperm Formation (d) Embryo Sac Development
सही उत्तर: ख) (b) Placentation
Placentation describes the arrangement of ovules within the ovary. This is the correct definition and aligns with established botanical terminology. Options (a), (c), and (d) refer to different developmental stages or structures, making them plausible but ultimately incorrect.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Two waves with amplitudes 2 cm and 3 cm and velocities 15 m/s and 20 m/s, respectively, traveling in the same direction interfere. The resultant amplitude of the interfering wave is:
सही उत्तर: ख) 8 cm
The resultant amplitude (A) of two waves traveling in the same direction is given by A = |A₁ ± A₂|, where A₁ and A₂ are the amplitudes of the individual waves. In this case, A = |2 cm ± 3 cm|. The maximum value for magnitude of difference is 5cm. Therefore the resultant amplitude is 5 cm. Option 2,8cm is incorrect because it doesn't account for subtraction. Option 4 is clearly wrong as it’s a very small number.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A series circuit consists of a 60 Ω resistor, a 30 μF capacitor, and a 12 V battery. After a long time, what will be the current through the circuit?
सही उत्तर: ख) 0 A
In a series RC circuit after a long time, the capacitor acts as an open circuit, meaning no current flows. However, this question appears to require understanding of the behavior of capacitors in DC circuits where they charge up. The correct answer is 0A since it’s a DC circuit. The other options are incorrect because they don't consider the steady-state behavior or the fact that the capacitor has fully charged.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The Hall effect arises due to:
सही उत्तर: ग) Interaction of charge carriers with a magnetic field
The Hall effect occurs when a current-carrying conductor is placed in a magnetic field perpendicular to the current. The moving charges (charge carriers) experience a force, causing them to accumulate on one side of the conductor, creating a voltage difference that's proportional to the magnetic field strength. Option 1 is incorrect because direct current flow doesn’t cause this effect. Options 3 and 4 are related to other phenomena.
💬 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।