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विद्याले विनम्रता दिन्छ, विनम्रताबाट योग्यता आउँछ।

Knowledge gives humility, and humility makes one worthy.

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भौतिक विज्ञान – Physics MCQ

भौतिक विज्ञान – कृषि/वन प्रवेश

Physics · Agriculture, Veterinary & Forestry Entrance · ४२५ प्रश्न

सबै विषय जीव विज्ञान रसायन विज्ञान भौतिक विज्ञान अङ्ग्रेजी कृषि र वन सामान्य ज्ञान

४२५ प्रश्न उपलब्ध। मोड छान्नुहोस्:

भौतिक विज्ञान: प्रश्न र उत्तर

सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।

  1. Two objects of masses m1 and m2 are separated by a distance r. The gravitational force between them is given by: (a) F = k * (m1 * m2) / r², where k is the gravitational constant. (b) F = k * (m1 + m2) / r, where k is a constant. (c) F = k * (m1 * m2) / r³, where k is the gravitational constant. (d) F = k * (m1 / m2) / r

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  2. A wave travels along a stretched string with a length of 1 meter and a speed of 300 m/s. If the frequency of the wave is 100 Hz, what is the wavelength of the wave? (a) 10 meters (b) 3 meters (c) 0.03 meters (d) 300 meters

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  3. A charged particle moving in a uniform magnetic field experiences a force. Which of the following statements regarding this force is correct? (a) The force is proportional to the charge and the speed of the particle. (b) The force is perpendicular to both the velocity of the particle and the magnetic field. (c) The force is proportional to the square of the speed of the particle. (d) The force is always directed towards the center of the circular path.

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  4. Two wires made of the same material have lengths L and 2L respectively. Their diameters are also equal. If one wire carries a current of I₁ and the other carries a current of I₂, then the ratio of the resistances is:

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  5. A ball is dropped from a height ‘h’ and it covers half the distance in the last second of its fall. What is the height ‘h’? (g = 10 m/s²)

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  6. The force required to move a mass ‘m’ up an inclined plane of angle θ with the horizontal surface is given by F = mg sinθ. If the coefficient of static friction between the mass and the incline is μs, then the maximum value of sinθ for which the mass will not slide down the incline is:

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  7. A stone is thrown vertically upwards with an initial velocity of 20m/s. What will be its velocity just before it strikes the ground? (Take g=10m/s²)

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  8. A lens with a focal length of +30 cm is used to form an image of an object placed at a distance of 60 cm from the lens. What is the magnification?

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  9. A stone of mass 2 kg is whirled in a horizontal circle of radius 1 meter at a speed of 5 m/s. What is the centripetal force acting on the stone?

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

  10. A car travels at a uniform speed of 60 km/h. What is its speed in meters per second?

    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    टिप्पणी जाँचपछि मात्र देखिन्छ।

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।