# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 109 - 113 of 2320

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## Passage

Three of the fundamental constants of physics are the universal gravitational constant, G = 6.7 x 10 ^{-11} m ^{3} kg ^{-1} s ^{-2}, the speed of light, c = 3.0 x 10 ^{8} m/s, and Planck’s constant,

h = 6.6 x 10 ^{-34} kg m ^{2} s ^{-1}.

## Question number: 109 (2 of 2 Based on Passage) Show Passage

» Physics and Measurement » Dimensions of Physical Quantities

### Question

The energy of a photon is given by E = If λ = 4 x 10 - 7 m, the energy of photon is

The universal gravitational constant, G = 6.7 x 10 ^{-11} m ^{3} kg ^{-1} s ^{-2}, the speed of light, c = 3.0 x 10 ^{8} m/s, and Planck’s constant, h = 6.6 x 10 ^{-34} kg m ^{2} s ^{-1}.

### Choices

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

a. | 3.95 eV | |

b. | 2.10eV | |

c. | 3.0 eV | |

d. | 4.5 eV |

## Passage

When an airplane flies, its total velocity with respect to the ground is v _{total} = v _{plane} + v _{wind’} where v _{plane} denotes the plane’s velocity through motionless air,

And v _{wind} denotes the wind’s velocity. Crucially, all the quantities in this equation are vectors. The magnitude of a velocity vector is often called the “speed. ”

Consider an airplane whose speed through motionless air is 100 meters per second (m/s). To reach its destination, the plane must fly east.

The “heading” of a plane is in the direction in which the nose of the plane points. So, it is the direction in which the engines propel the plane.

## Question number: 110 (1 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

### Question

Let denote the answer of above question. The plane has what speed with respect to the ground?

### Choices

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

a. | (100 m/s) | |

b. | ||

c. | ||

d. | (100 m/s) |

## Question number: 111 (2 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

### Question

The pilot maintains an eastward heading while a 20 m/s wind blows northward. The plane’s velocity is deflected from due east by what angle?

### Choices

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

a. | ||

b. | ||

c. | ||

d. | All of the above |

## Question number: 112 (3 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

### Question

If the plane has an eastward heading, and a 20 m/s wind blows towards the southwest, then the plane’s speed is -

### Choices

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

a. | 100 m/s | |

b. | more than 100 m/s | |

c. | more than 80 m/s but less than 100 m/s | |

d. | 80 m/s |

## Question number: 113

» Kinematics » Scalars and Vectors » Scalar and Vector Products

### Question

Two forces Fl = 5i + l0j - 20k and F2 = 10i - 5j - l5k act on a single point. The angle between Fj and F2 is nearly

### Choices

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

a. | 90° | |

b. | 60° | |

c. | 30° | |

d. | 45° |