CTEVT स्वास्थ्य प्रवेश डिप्लोमा इन फार्मेसी र ल्याब (CMLT) तयारी
CTEVT स्वास्थ्य प्रवेश – डिप्लोमा इन फार्मेसी र ल्याब (CMLT)
CTEVT D.Pharm & CMLT · CTEVT Health Entrance
१,६३७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
CTEVT स्वास्थ्य 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 electronic configuration of chlorine (atomic number 17) is:
सही उत्तर: घ) 2, 8, 7
17 electrons fill shells K, L, M as 2, 8, 7. With 7 valence electrons, chlorine gains one electron to form Cl⁻.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An atom of sodium has atomic number 11 and mass number 23. The number of neutrons in it is:
सही उत्तर: क) 12
Neutrons = mass number − atomic number = 23 − 11 = 12. 11 is the number of protons (and electrons).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A simple machine has a mechanical advantage of 4 and a velocity ratio of 5. Its efficiency is:
सही उत्तर: ग) 80%
Efficiency = (MA / VR) × 100% = (4/5) × 100 = 80%. Efficiency of a real machine can never exceed 100%, so 125% is impossible.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which radiation emitted by radioactive substances carries no electric charge?
सही उत्तर: क) Gamma rays
Gamma rays are electromagnetic waves and are not deflected by electric or magnetic fields. Alpha particles are positive and beta particles are negative.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A fuse wire should have:
सही उत्तर: ख) High resistance and low melting point
A fuse must heat up and melt quickly when excess current flows, cutting the circuit. It is usually made of a tin-lead alloy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When white light passes through a prism, the colour that deviates the least is:
सही उत्तर: ग) Red
Red has the longest wavelength and bends the least; violet bends the most. So red appears at the top of the spectrum.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The splitting of white light into its seven colours by a prism is called:
सही उत्तर: घ) Dispersion
Different colours bend by different amounts in a prism, which separates them; this is dispersion. A rainbow is a natural example.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Sound waves of frequency above 20,000 Hz are called:
सही उत्तर: ख) Ultrasonic waves
Frequencies above 20 kHz are ultrasonic, used in ultrasonography (USG) in hospitals. Infrasonic waves are below 20 Hz.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The audible range of frequency for a normal human ear is:
सही उत्तर: क) 20 Hz to 20,000 Hz
Humans hear roughly 20 Hz to 20 kHz. Sound above 20 kHz is ultrasound and below 20 Hz is infrasound.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m. Its speed is:
सही उत्तर: ग) 340 m/s
Wave speed v = fλ = 500 × 0.68 = 340 m/s. This is close to the speed of sound in air.
💬 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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