Question

nios 12th physics important questions ​

Answer 1

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Answer 2

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1. Explain the working of a gold-leaf electroscope?
2. The factors effected by the internal resistance of a cell?
3. What are the safety procedures taken up to avoid radiation exposure?
4. Name the electromagnetic radiations used for  a) curing cancer and b) water purification?
5. What mode of propagation is used by long and short waves in broadcasting signals?
6. What will be the products of the radioactive decay of Uranium-238 Elucidate about the particles that are emitted in the process and the product finally formed?
7. What are main source and use of the following electromagnetic waves, a) microwaves b) gamma rays c) Ultraviolet rays
8. Explain heisenberg uncertainty principle and calculate the change in momentum for a electron with a wavelength of 5.5x10⁻¹¹m.
9. Why are infrared rays also know as heat waves? Where are IR used?
10. Draw the logical table for, a)XOR Gate and b) NAND gate