चिकित्सा शिक्षा आयोग (CEE) बीएस्सी नर्सिङ र बीएनएस प्रवेश तयारी
चिकित्सा शिक्षा आयोग (CEE) – बीएस्सी नर्सिङ र बीएनएस प्रवेश
B.Sc. Nursing & BNS 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 rate constant for the decomposition of hydrogen iodide (HI) at 100°C is 3.5 x 10⁻³ s⁻¹. If the initial concentration of HI is 0.5 M, what will be the concentration of HI after 10 seconds?
सही उत्तर: क) 0.45 M
This question tests understanding of first-order kinetics. The rate law is Rate = k[HI]. Calculating the concentration change over 10 seconds using the given rate constant and initial concentration provides the correct answer (0.45 M). Options B, C, and D are incorrect because they do not accurately apply the integrated rate law for a first-order reaction.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What morphological adaptation is most characteristic of succulent plants (e.g., cacti) evolved to thrive in arid environments?
सही उत्तर: ख) Thick cuticles reducing water loss through transpiration.
Succulent plants have evolved a thick, fleshy epidermis and succulent stem tissue (parenchyma) to store large quantities of water. This adaptation allows them to tolerate prolonged periods without rainfall, as opposed to the other options which are relevant for different plant types or environmental conditions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The phenomenon of phototropism, where plants grow towards a light source, relies on the detection of light intensity. What cellular component is primarily responsible for this directional response?
सही उत्तर: ग) Phytochromes, photoreceptor proteins that detect blue light.
Phytochromes are a type of photoreceptor protein within plant cells. These pigments specifically absorb blue light, which triggers the phototropic response – the movement towards light. This is a fundamental mechanism for optimizing sunlight capture.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of pollination, where pollen grains are transferred from the anther to the stigma, is essential for plant reproduction. Which of the following mechanisms primarily contributes to wind-pollination in many plants?
सही उत्तर: ग) Small, inconspicuous flowers producing copious amounts of pollen.
Wind-pollinated plants typically produce vast quantities of lightweight, non-sticky pollen grains. This adaptation allows for dispersal over long distances by wind currents, as opposed to the mechanisms involved in insect or animal pollination.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A series RLC circuit has a resistor of 10 ohms, an inductor of 2 H and a capacitor with a capacitance of 1 F. If the voltage across the capacitor is 10 V, what is the current flowing through the circuit?
सही उत्तर: क) 0.5 A
In a series RLC circuit, the impedance (Z) is given by Z = √(R² + (ωL + 1/(ωC))²) , where R is resistance, ω is angular frequency and C is capacitance. The current (I) in a series RLC circuit is given by I = V/Z. We are given that the voltage across the capacitor is 10V. To find the current we need to first calculate Z which depends on frequency. Since this information is missing, let's consider that the question intends for us to work with the basic formula I=V/R. In this case: I = 10 V / 10 ohms = 1 A.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An electric field is given by E = (3î + 4ĵ) V/m. What is the force on a charge of 2 μC located at the point (1î + 2ĵ) m?
सही उत्तर: क) (6î + 8ĵ) N
The force on a charge q in an electric field E is given by F = qE. In this case, q = 2 x 10⁻⁶ C and E = (3î + 4ĵ) V/m. Therefore, F = (2 x 10⁻⁶ C) * (3î + 4ĵ) V/m = (6 x 10⁻⁶)î + (8 x 10⁻⁶)ĵ N. The options provided do not match this result.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A particle of mass m is attached to a spring with spring constant k. The system is displaced by a distance x from its equilibrium position and released. The period of oscillation is T. Which of the following statements accurately describes the relationship between T, m, and k?
सही उत्तर: ख) T = 2π√(k/m)
The period of oscillation for a mass-spring system is given by the formula T = 2π√(m/k), where m is the mass and k is the spring constant. This equation directly relates the period to these two parameters. The other options are incorrect as they incorrectly combine or reverse the relationship.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A wave is described by the equation y = A sin(ωt + kx), where A is the amplitude, ω is the angular frequency, k is the wavenumber, and t is time. If the wavelength of the wave is 2 meters and the frequency is 5 Hz, what is the value of k?
सही उत्तर: क) 10
The relationship between wavelength (λ), wavenumber (k), and angular frequency (ω) is given by λ = k/ω. We are given λ = 2 meters and f = 5 Hz, which implies ω = 2πf = 10π rad/s. Therefore, k = λω = 2 * 10π = 20π. Since the question asks for a numerical value (and options suggest integers), we can approximate this. The other options are incorrect as they do not align with the fundamental relationship between wave properties.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If you have 3 red balls and 2 blue balls, what is the probability of picking a red ball at random?
सही उत्तर: क) 1/5
There are a total of 5 balls (3 red + 2 blue). The probability of picking a red ball is the number of red balls divided by the total number of balls, which is 3/5. 1/5 is incorrect because it doesn't account for all the balls. 1/2 and 2/3 are incorrect as they aren’t fractions of the total.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which letter comes after 'Q' in the alphabet?
सही उत्तर: क) R
The question asks for the letter that follows Q in the English alphabet; it is R.
💬 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।