What is galvanometer? How can you convert it into a voltmeter? Why should the resistance of a voltmeter be high?
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?
Explain the process of megagametogenesis.
Explain Megagametogenesis with suitable diagram.
Why is the diffraction of sound waves easier to observe than of the light waves?
Define transpiration and discuss the process of unequal transpiration in dicot leaf.
What is Anaerobic respiration? Explain anaerobic respiration in plants and animals.
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.
What are the differences between wavefront and wavelet?
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.