Questions
Grade -12 (NEB) > Science Physics
DC Circuits, Electricity & Magnetism
Define galvanometer. Why should the resistance of a voltmeter be high?
What is galvanometer? How can you convert it into a voltmeter? Why should the resistance of a voltmeter be high?
Grade -12 (NEB) > Science Physics
DC Circuits, Electricity & Magnetism
Two wires, one of copper and another of iron, have the same diameter and can carry the same current. In which wire the drift velocity of electrons will be more?
Two wires, one of copper and another of iron, have the same diameter and can carry the same current. In which wire the drift velocity of electrons will be more?
Grade -12 (NEB) > Science Biology
Botany, Developmental Biology
Grade -12 (NEB) > Science Biology
Botany, Developmental Biology
Explain Megagametogenesis and development of female gametophyte.
Explain Megagametogenesis with suitable diagram.
Grade -12 (NEB) > Science Physics
Diffraction of Light, Physical Optics
Why is the diffraction of sound waves easier to observe than of the light waves?
Why is the diffraction of sound waves easier to observe than of the light waves?
Grade -12 (NEB) > Science Biology
Botany, Physiology of Organisms
Discuss the experiment and process of unequal transpiration in dicot leaf.
Define transpiration and discuss the process of unequal transpiration in dicot leaf.
Grade -12 (NEB) > Science Biology
Botany, Physiology of Organisms
What is Anaerobic respiration? Explain anaerobic respiration in plants and animals.
What is Anaerobic respiration? Explain anaerobic respiration in plants and animals.
Grade -12 (NEB) > Science Physics
Nature and Propagation of Light, Physical Optics
In Michelson’s rotating prism method, the distance between the rotating prism and the distant mirror is 45 km. A minimum speed of 416.7 revolutions per second is needed to view the source in the same position as when the prism is at rest. Calculate the speed of light.
In Michelson's rotating prism method, the distance between the rotating prism and the distant mirror is 45 km. A minimum speed of 416.7 revolutions per second is needed to view the source in the same position as when the prism is at rest. Calculate the speed of light.
Grade -12 (NEB) > Science Physics
Nature and Propagation of Light, Physical Optics
What are the differences between wavefront and wavelet?
What are the differences between wavefront and wavelet?
Grade -12 (NEB) > Science Physics
Waves, Waves in Pipes and Strings
Define end correction of a pipe. Prove that both odd and even types of harmonics can be obtained from an organ pipe at both ends.
Define end correction of a pipe. Prove that both odd and even types of harmonics can be obtained from an organ pipe at both ends.
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