Alight bulb is used for seeing in the dark, and incandescent lights heat a metal filament that radiates light inside a glass bulb. Given these facts, what is used for used for seeing in the dark among the following options:
- It gets more light
 - Magnifying glass
 - Heating a metal filament.
 - our nearest star
 - Eyeglasses
 - Electrical energy
 - Electric devices
 - Binoculars


 

   Heating a metal filament.      