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Practice Test -Physics

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1. A ring and a disc roll on the horizontal surface without slipping with same linear velocity. If both have same mass and total kinetic energy of the ring is 4 J then total kinetic energy of the disc is 



2. The resistances in left and right gap of a meter bridge are 20Ω and 30Ω respectively. When the resistance in the left gap is reduced to half its value, the balance point shifts by 



3. Light of wavelength ‘λ’ which is less than threshold wavelength is incident on a photosensitive material. If incident wavelength is decreased so that emitted photoelectrons are moving with same velocity then stopping potential will 



4. The capacity of a parallel plate air capacitor is 2μF and voltage between the plates is changing at the rate of 3 V/S. The displacement current in the capacitor is 



5. A rope 1 cm in diameter breaks if tension in it exceeds 500 N. The maximum tension that may be given to a similar rope of diameter 2 cm is 



6. Which of the following quantity does NOT change due to damping of oscillations?



7. A galvanometer of resistance 30Ω is connected to a battery of emf 2V with 1970Ω resistance in series. A full scale deflection of 20 divisions is obtained in the galvanometer. To reduce the deflection to 10 divisions, the resistance in series required is 



8. For the hydrogen atom, the energy of radiation emitted in the transition from 4th excited state to 2nd excited state, according to Bohr’s theory is 



9. From Brewster’s law, except for polished metallic surfaces, the polarising angle 



10. In Bohr’s theory of Hydrogen atom, the electron jumps from higher orbit ‘n’ to lower orbit ‘p’. The wavelength will be minimum for the transition 



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Physics online tests will help you in quick practice and ultimately increase your speed accuracy and quick thinking ability. Physics subject Objective Questions is useful in medical entrance tests like NEET test and MHT-CET entrance test for Engineering. Physics is an important subject in NEET exam question papers as well as in MHT-CET engineering entrance test and we are trying to provide maximum number of important practice question for free.

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