4 times.
Sun light is more brighter than the light from flashlight in house.
Sun light is more brighter than the light from flashlight in house.
Yes, brighter light typically means more photons are present because brighter light has a higher intensity, which is measured by the number of photons hitting a given area over time. So, in a brighter light source, there are indeed more photons emitted.
yes
Yes, a 100-watt light bulb is brighter than a 60-watt light bulb because it produces more light.
This is a difficult question to answer, as the brightness of light is itself perceived, rather than actual. In some ways, light is brighter than you can perceive it, simply because another person can perceive that light to be brighter than you yourself perceived it. The brightness of light to the eye is relative.
It has a tail light which does not get brighter when braking.
A brighter future!
it explodes
Yes, brighter light will eject more electrons from a photosensitive surface than dimmer light of the same frequency. This is because brighter light carries more energy per photon, resulting in a higher probability of ejecting electrons from the surface.
Street light is good
Not necessarily. They can be brighter, or less bright. Both the energy saving light bulbs and the old-fasioned incandescent light bulbs come in different powers.