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Physics More MCQs
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Avg score: 25% Most missed: “If the maximum value of the induced e.m.f. is Vm and maximum r.m.s. current is √…”
Physics More MCQs
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1. If the maximum value of the induced e.m.f. is Vm and maximum r.m.s. current is √ 2 ampere for an a.c. circuit with resistance R, then the value of Vm in volt is equal to...
2. The wavelength of light plays no role in...
3. Two parallel wires carry current in the same direction,...
4. The intermolecular potential is dependent on...
5. A thin ring has mass M and radius R. Its moment of inertia about the axis passing through its center and perpendicular to its plane is...
6. In a uniform segment of a circuit the current is proportional to the...
7. To charge a secondary cell, what is needed is...
8. When the velocity of a moving object is doubled...
9. When a ferromagnet is inserted in a current-carrying loop, the magnetic field...
10. The only atom which has no neutron in the nucleus is...
11. The image a camera forms on the film is...
12. For monatomic gases, Cp/Cv is equal to...
13. The value of the stopping potential depends on...
14. A light ray passes through a prism with an angle of incidence θ, an angle of deviation δ and an angle of emergence ε. Minimum deviation occurs when...
15. Two satellites have periods P1 and P2, respectively. Their heights above the surface of the earth are h1 and h2, respectively. If h1 > h2, then...
16. The acceleration due to gravity on Mars is 3.7 m/s2. Compared with her mass and weight on the earth, an astronaut on Mars has...
17. A boy swings from a rope 4.9 m long. His approximate period of oscillation is...
18. The horizontal component of a force of 10 N inclined at 30° to the vertical is...
19. A certain person's heart beats 1.2 times per second and pumps 1.0 x 10-4 m3 of blood per beat against an average pressure of 14 kPa. The power output of the heart is...
20. The distance between a node and the immediate next antinode is...
21. A projectile is thrown in the direction making an angle θ with the horizontal. The projectile attains maximum height for θ equal to...
22. A cable stretches by amount 'a' under a certain load. If it is replaced by a cable of the same material but half as long and half the diameter, the same load will stretch it by...
23. A Carnot engine operates between 800K and 200K. If it absorbs 8 kJ of heat in each cycle, the work done by it per cycle is...
24. Diamagnetic materials are substances that...
25. To keep a vehicle moving at the speed v requires a force F. The power needed is...