Advertisements
Advertisements
प्रश्न
Give scientific reasons: We cannot distinguish colours in moonlight.
Advertisements
उत्तर
Cone cells in the retina are responsibe for colour vision. They are functional only in bright light. Moon light is unable to stimulate the cone cells; however, the rod cells respond to dim light. Hence, we can see in moon light but cannot distinguish colours.
APPEARS IN
संबंधित प्रश्न
Photoreceptor cells are present in __________.
(A) blind spot
(B) retina
(C) cochlea
(D) cornea
Time taken by an object to complete one oscillation is called ___________.
Where is the Utriculus located? Briefly mention its function.
Name the three ear ossicles.
With reference to the human ear, answer the question that follow:
Name the nerve, which transmits messages from the ear to the brain.
Given below is the diagram of a part of the human ear. Study the same and answer the questions that follow:
 |
Give the collective biological term for Malleus, locus and Stapes.
Why should we not put a pin or pencil in our ears ?
Vibrating particles travel all the way from the vibrating objects to the ear.
Categorise the following parts under (i) external, (ii) middle and (iii) internal ear.
Ear drum, hammer, pinna, cochlea, anvil, stirrup, eustachian tube, tympanum, oval window, semi-circular canals.
Given below is a diagrammatic representation of a part of the human ear.
- Name the parts numbered 1-6.
- Which parts of the ear shown here are complete.
 |
