कृषि, पशु र वन विज्ञान B.Sc. Ag र B.V.Sc. & A.H. प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Ag र B.V.Sc. & A.H. प्रवेश
B.Sc. Ag & B.V.Sc. Entrance · Agriculture, Veterinary & Forestry Entrance
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि, पशु र वन विज्ञान 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
-
A person has a mass of 60 kg on the Earth. If g on the Moon is one-sixth of that on the Earth (g = 9.8 m/s²), the person's weight on the Moon is:
सही उत्तर: घ) 98 N
W = m × g/6 = 60 × 9.8/6 = 98 N; the mass stays 60 kg.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A fielder pulls his hands back while catching a fast cricket ball in order to:
सही उत्तर: ग) increase the time of impact and so reduce the force on his hands
The change in momentum is fixed; spreading it over a longer time reduces the average force (F = Δp/Δt).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
When a moving bus stops suddenly, the passengers fall forward. This is due to:
सही उत्तर: क) inertia of motion
The passengers' bodies tend to keep moving forward even after the bus stops (Newton's first law).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
If the speed of a car is doubled, its minimum stopping distance for the same braking retardation becomes:
सही उत्तर: घ) 4 times
s = u²/2a, so s ∝ u²; doubling u makes s four times.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
For a body thrown horizontally from a height (air resistance neglected), the horizontal component of its velocity:
सही उत्तर: ग) remains constant
No horizontal force acts on it, so the horizontal velocity stays the same; only the vertical velocity changes due to gravity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In uniform circular motion, the acceleration of the body is directed:
सही उत्तर: घ) towards the centre of the circle
The centripetal acceleration v²/r always points towards the centre, perpendicular to the velocity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A runner goes halfway round a circular track of radius 7 m. The magnitude of the runner's displacement is:
सही उत्तर: ख) 14 m
Displacement is the straight line from start to finish, which is a diameter: 2 × 7 = 14 m (the distance covered is πr = 22 m).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The scalar (dot) product of two perpendicular vectors is:
सही उत्तर: क) zero
A·B = AB cos 90° = 0.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The most suitable instrument for measuring the diameter of a thin wire accurately is a:
सही उत्तर: ख) screw gauge
A screw gauge has a least count of about 0.01 mm, fine enough for wire diameters.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following is a derived physical quantity?
सही उत्तर: क) Velocity
Velocity = displacement/time is derived from the base quantities length and time; length, mass and time are base quantities.
💬 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।