Physics GK In Hindi

Physics GK Question 

Quiz 2

Que: If a wire of resistance R is melted and recast to half of its length, then the new resistance of the wire will be

  (A) R/4                                                  

  (B) R/2

  (C) R                                                      

  (D) 2R

Answer: (A) R/4 

Que: A non-electronic conductor is

  (A) Iron                                               

  (B) Gas Carbon 

  (C) Copper Sulphate                      

  (D) None

Answer: (D) None

Que: Ohm’s law is valid in case of

  (A) Semiconductor                         

  (B) Conductor

  (C) Superconductor                       

  (D) Insulator

Answer: (B) Conductor

Que : The Laser is a beam of radiations which are

  (A) Non-coherent and monochromatic                                 

  (B) Coherent and monochromatic

  (C) Non-coherent and non-monochromatic                                        

  (D) Coherent and non-monochromatic

Answer: (B) Coherent and monochromatic

Que: Centigrade and Fahrenheit temperatures are the same at

  (A) 320                                                  

  (B) 400

  (C) -2730                                              

  (D) -400

Answer: (D) -400

Que: The dimensional formula for universal gravitational constant is

  (A) M-1L3T2                                       

  (B) ML2T-2

  (C) M-2                                 

  (D) M-1L3T-2

Answer: (D) M-1L3T-2

Que: Diopter is the unit of

  (A) Power of a lens                       

  (B) Focal length of a lens

  (C) Light intensity                            

  (D) Sound intensity

Answer: (A) Power of a lens 

Que : When a atone is thrown in a calm water of a pond the waves produced on the surface of water are

  (A) Longitudinal                               

  (B) Transverse

  (C) Both A and B                              

  (D) Waves are not produced

Answer: (B) Transverse

Que: In a filament type light bulb most of the electric power consumped appears as

  (A) Visible light                  

  (B) Infra red light

  (C) Ultra violet rays                         

  (D) Fluorescent light

Answer: (B) Infra red light

Que: The non metal found in the liquid state is

  (A) Bromine                                       

  (B) Nitrogen 

  (C) Fluorine                                        

  (D) Chlorine

Answer: (A) Bromine

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