- What is pressure amplitude? Obtain an expression for it.
- Define Intensity of sound. Obtain an expression for it.
- If the pressure amplitude of a sound wave is halved, by what factor does the intensity of the wave change?
- What is meant by threshold of hearing?
- Why is the roaring of lion different than the sound of a mosquito?
- How is it that one can recognize a friend from his voice without seeing him?
- A nucleus contains no electrons, yet it ejects them. Explain.
- How do the mass number and atomic number of a radioactive element change in an alpha, beta and gamma decay?
- How do beta particles differ from electrons?
- Discuss the importance of physics for the development of nation.
- A transformer gets heated up while in use. Why?
- Find the impedance of LCR circuit in series.
Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations.
Thursday, 1 February 2018
Physics homework grade XII-for 4th Feb Sunday
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