मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · २,०३९ प्रश्न
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
CEE 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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A projectile is fired with a speed of 20 m/s at 30° to the horizontal. Its time of flight is (g = 10 m/s²):
सही उत्तर: ग) 2 s
T = 2u sinθ/g = 2 × 20 × 0.5/10 = 2 s. 1 s is only the time taken to reach the highest point.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a given speed of projection, the horizontal range of a projectile is maximum when the angle of projection is:
सही उत्तर: ख) 45°
R = u² sin2θ/g is maximum when sin2θ = 1, i.e. θ = 45°. Angles of 30° and 60° give equal but smaller ranges because they are complementary.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A ball is thrown vertically upward with a speed of 20 m/s. The maximum height reached is (g = 10 m/s²):
सही उत्तर: क) 20 m
At the highest point v = 0, so h = u²/2g = 400/20 = 20 m. 40 m results from omitting the factor 2 in the denominator.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A body is dropped from rest. The distance it falls in the first 3 s is (g = 10 m/s²):
सही उत्तर: घ) 45 m
s = ½gt² = ½ × 10 × 3² = 45 m. 90 m would result from forgetting the factor ½.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The number of significant figures in 0.007020 is:
सही उत्तर: ग) 4
Leading zeros are not significant, so only 7, 0, 2 and the trailing 0 count, giving 4. The trailing zero after the decimal point is significant, which is why 3 is wrong.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The dimensional formula of the universal gravitational constant G is:
सही उत्तर: ख) [M⁻¹L³T⁻²]
From F = Gm₁m₂/r², G = Fr²/m² = [MLT⁻²][L²]/[M²] = [M⁻¹L³T⁻²]. The mass exponent is −1 because one power of M from force cancels one of the two in m².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the angle between the hour and minute hands of a clock at 3:30?
सही उत्तर: ग) 75°
Hour hand is at 105° and minute hand at 180°, so the angle is 75°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Find the next letter: A, C, F, J, O, ?
सही उत्तर: ख) U
Positions 1, 3, 6, 10, 15 increase by 2, 3, 4, 5, so next is 15 + 6 = 21 = U.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man walks 5 km north, turns right and walks 3 km, then turns right again and walks 5 km. Where is he now with respect to the starting point?
सही उत्तर: क) 3 km East
The two 5 km legs cancel (north then south), leaving 3 km towards the east.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A is the brother of B. C is the mother of A. D is the father of C. How is D related to B?
सही उत्तर: घ) Grandfather
C is B's mother and D is C's father, so D is B's (maternal) grandfather.
💬 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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