![subject](/tpl/images/cats/fizika.png)
Physics, 17.04.2020 19:55 NoireDemon
The rods, which number over 100 million, can only be activated by a certain range of wavelengths, but they do not pass any color information to the brain. In other words, they note differences in shades of grey (from black to white) and are responsible for a person's ability to see in dim light. Cones, which number around 6 million, give us color vision. Cones come in three different kinds: 64% of cones are sensitive to long wavelengths of visible light (toward the red end of the spectrum), 32% are sensitive to medium wavelengths, and the remaining 2% are sensitive to short wavelengths (toward the blue end of the spectrum). Colors are differentiated on the basis of the extent to which visible light stimulates each kind of cone.
1.Do rods have their peak sensitivity at a higher or lower frequency than cones?
a) Higher
b)Lower
2.Do rods and cones have similar sensitivities near the red or near the violet edge of the visible spectrum?
a)red
b)violet
3.Is it easier to detect a dim red source or a dim violet source of light?
a)red
b)violet
4.At 500 nm, which of the following statements is true?
a)Rods are about 1000 times more sensitive than cones.
b)Rods are about 3 times more sensitive than cones.
c)Rods and cones are about equally sensitive.
d)Cones are about 3 times more sensitive than rods.
e)Cones are about 1000 times more sensitive than rods.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:00
Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:30
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 1
You know the right answer?
The rods, which number over 100 million, can only be activated by a certain range of wavelengths, bu...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 09:01
![question](/tpl/images/cats/ekonomika.png)
Business, 20.09.2020 09:01
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/istoriya.png)
History, 20.09.2020 09:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 09:01
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 20.09.2020 09:01
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 09:01
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 20.09.2020 09:01
![question](/tpl/images/cats/biologiya.png)
Biology, 20.09.2020 09:01
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)