General Studies  Physics

31. Elliptical orbit of electron was proposed by

Prout Bohr Sommerfeld Einstein

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32. Unit of stress is

Nm-1 Nm-2 N2m-1 no unit

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33. Identify the principle of hydraulic brake

Hookes law Stokes law Pascals law Bernoullis theorem

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34. Which one of the following is used to cure Astigmatism

Cylindrical lens Concave lens Bifocal lens All

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35. When amplitude is doubled ,intensity is

Increases two times Decreases two times Increases four times Decreases four times

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36. Transverse wave propagated in

Solids Liquids Solid,Liquid,Gas Both Solids and Liquids

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37. Which one of the following is wind instrument

Guitar Tabla Nadaswaram Violin

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38. frequency of ultrasonic sound is

20 Hz 20000Hz 16000 Hz 25000 HZ

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39. The method of demagnetization

Heating the magnet Magnet rubbed with another magnet Breaking the magnet Cooling the magnet

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40. Identify the strong magnet

Para magnet Ferrro magnet dia magnet None

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