Question | Options |
---|---|

Significant figures in 0.000846 are : | Six , Four, Seven , three |

If the line of action of force passes through axis of rotation or origin then its torque : | Maximum , Unity , Zero, None Of These |

The magnitude of the vector 2/3 - 1/3 + 2/3 K is : | zero, one, Three, 1//9 |

Laws of motion are not valid in a system which is : | Moving with uniform velocity, At rest, Isolated, Non-inertial |

if the direction of force is perpendicular to the direction of motion of body then work done is : | Minimum, Maximum, zero, Infinity |

If a gymnast sitting on rotating stool with his arms outstretched lowers his arm: | The angular speed decrease, The angular speed increase , The angular speed remains constant , None |

If cross sectional area of pipe decreases the speed of fluid must increase according to | Venturi relation, Bernoullis equation, Equation of continuity, Torricellis theorem |

The frequency of second pendulum is : | 1 Hz, 0.5 Hz, 1.5 Hz, 2 Hz |

The cooking and heating of food by microwave oven is an example of : | SHM, Resonance, Damped oscillation , None Of These |

The speed of sound in air at 0°C is 330 ms-1 it speed at 2°C : | 331.22 ms-1, 33122 cmS-1, 330 ms-1, 331.22 ms-1 and 33122 cmS-1 |

When Newton Ring are observed with reflected light the central spot is : | Red, Blue, Dark , Bright |

At constant temperature if volume of given gas is doubled then density of the gas becomes : | Double , 1//4, 1//2 original , Unchanged |

The amount of heat required to melt one kg of ice 0°C is called : | Heat of vaporization, Heat capacity, Latent heat of fusion of ice , None Of These |

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