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Class 12 Physics MCQs
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Class 12 Physics MCQs
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25 Questions

1. The ability of a material to allow the flow of magnetic lines of force through it is known as:
2. Which of the following statements about the electric field lines is incorrect?
3. What is the ratio of the radii of the two nuclei with the mass number 1 and 64?
4. Which of the following physical quantity has S.I. unit J/C?
5. What will be the change in the self-inductance of a coil if the number of turns in a solenoid is doubled?
6. The Internal resistance of a cell depends on which of the following factors:
7. The charge carriers in a germanium semiconductor are:
8. Acceptor level in the p-type semiconductor lies in:
9. Which light is deviated more by a prism?
10. Which one of the following is not a purpose of modulating a signal in transmission?
11. Which of the following statement about LED (Light Emitting diode) is correct?
12. Balmer series of the hydrogen emission spectrum lies in which region?
13. Which of the following statement about the magnetic field lines is incorrect?
14. The transformer is used to:
15. The origin of the displacement current:
16. A Galvanometer with a resistance G has the maximum safe potential difference, Vo. What resistance can be connected in series so that the Galvanometer may become a voltmeter of range nVo volts?
17. The fuse in electrical circuits has:
18. The red light cannot produce the electrons from a clean zinc metal surface because:
19. The losses occurring in the core of the transformer that produces sound and vibrations is known as:
20. An instrument that comprises of only a single convex lens is:
21. A system containing two equal and opposite charges separated by a finite distance is called as:
22. What is the stopping potential applied to a photocell if the maximum kinetic energy of a photoelectron is 6eV?
23. The path of electrons in the presence of an electric field is:
24. The electromagnetic spectrum with the wavelength of 0.1m or 10cm is:
25. What is the refractive index of the medium with a polarizing angle of 60 degrees?

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