# NEET Physics: Questions 1036 - 1038 of 2099

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## Question number: 1036

» Ray Optics » Deviation and Dispersion of Light by a Prism

### Question

A thin prism of angle A = 6° produces a deviation δ = 3°. Find the refractive index of the material of prism.

### Choices

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

a. | 0.5 | |

b. | 1.0 | |

c. | 1.5 | |

d. | 2.5 |

## Question number: 1037

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

### Question

An alternating emf of frequency is applied to a series *LCR * circuit. For this frequency of the applied emf is,

### Choices

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

a. | The circuit is at resonance and its impedance is made up only of a reactive part. | |

b. | The current in the circuit is not in phase with the applied e. m. f. and the voltage across R equals this applied emf | |

c. | The sum of the potential differences across the inductance and capacitance equals the applied e. m. f. which is 180° ahead of phase of the current in the circuit | |

d. | The quality factor of the circuit is or and this is a measure of the voltage magnification (produced by the circuit at resonance) as well as the sharpness of resonance of the circuit. |

## Question number: 1038

» Ray Optics » Power of a Lens

### Question

The power of a Plano-convex lens is P. If this lens is cut longitudinally along its principal axis into two equal parts and then they are joined as given in the figure. The power of combination will be

### Choices

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

a. | P | |

b. | 2P | |

c. |
| |

d. | Zero |