# NEET Physics: Questions 11 - 15 of 2099

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## Question number: 11

» Physics and Measurement » Dimensions of Physical Quantities

### Question

The dimensional formula for Planck’s constant (h) is

### Choices

Choice (4) | Response | |
---|---|---|

a. | [M | |

b. | [M | |

c. | [M L | |

d. | [M L |

## Question number: 12

» Kinematics » Motion in a Straight Line

### Question

A particle starts moving from the position of rest under a constant ace. If it covers a distance x in t second, what distance will it travel in next t second?

### Choices

Choice (4) | Response | |
---|---|---|

a. | x | |

b. | 2x | |

c. | 3x | |

d. | 4x |

## Question number: 13

» Physics and Measurement » Errors in Measurement

### Question

The period of oscillation of a simple pendulum is given by T = 2π

where *l* is about 100 cm and is known to have l mm accuracy. The period is about 2s. The time of 100 oscillations is measured by a stopwatch of least count 0.1s. The percentage error in g is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 0.8% | |

b. | 0.1% | |

c. | 1% | |

d. | 0.2% |

## Question number: 14

» Kinematics » Motion in a Straight Line

### Question

A point moves with uniform acceleration and V _{1}, v _{2} and v _{3 } denote the average velocities in the three successive intervals of time t _{1}, t _{2} and t _{3}. Which of the following relations is correct?

### Choices

Choice (4) | Response | |
---|---|---|

a. | (V | |

b. | (V | |

c. | (V | |

d. | None of the above |

## Question number: 15

» Kinematics » Motion in a Straight Line

### Question

What will be the ratio of the distances moved by a freely falling body from rest in 7^{th} and 9^{th} seconds of journey?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 13: 17 | |

b. | 4: 5 | |

c. | 7: 9 | |

d. | 16: 25 |