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False. They contain two filaments which are first switched on independently of one another (the lowest two settings), then switched on simultaneously to produce the highest setting. For instance a bulb containing a 25 watt filament and a 50 watt filament will produce 25, 50 and 75 watts of light.
What else can I help you with?
When light passes from water into air the light bends away from the normal true or false?
False. When light passes from water into air, it bends towards the normal.
When light strikes a transparent material most of the light is reflected true or false?
False. When light strikes a transparent material, some of the light is reflected, but much of it is also transmitted through the material. The amount of reflection depends on the refractive index of the material.
Is the following true OR false cones are extremely sensitive to light but they do not distinguish different colors?
False. Cones are photoreceptor cells in the retina that are responsible for color vision. There are three types of cones that are sensitive to different wavelengths of light, allowing us to see a wide range of colors.
Both humans and birds can see ultraviolet light true or false?
True. Both humans and birds have the ability to see ultraviolet light, although the range and clarity of this ability can vary between species.
The wavelength of light is very long and the frequency is very short true or false?
False. The wavelength of light is inversely related to its frequency. Longer wavelengths have lower frequencies and vice versa.
Is it true or false that most myosins move along actin filaments towards the pointed end?
True. Most myosins move along actin filaments towards the pointed end.
Three colors of light that can be combined to make any other color are called complementary colorsis it true or false?
False
Is it true that thick filaments are made of a protein called actin?
false, it's made of myosin
Is a light year a unit of time True or false?
False the light year is not a unit of time it is a unit of distance true.
Is this true or false light travels faster through water than it does through glass?
True
True or false negative three divided by negative one is three?
True
Latin had only three cases True False?
False.
All essays are light and humorous true or false?
True
Without light we would have no colour. true or false?
true
True or false Antony had approximately 260 light vessels?
false
Is it true or false the longest wavelength of visable light is violet?
It is false.
When light passes from water into air the light bends away from the normal true or false?
False. When light passes from water into air, it bends towards the normal.
