MCQ on Human eye and its parts
MCQ on Human eye and its parts. Practice Human eye and its parts Multiple Choice Questions and Explanation.
Practice MCQ Questions with Answers for Human eye and its parts students will gain deep knowledge in Human eye and its parts Quiz Questions. You can practice all MCQ Questions for Class 10 Physics with Answers for CBSE Board Exam 2021.
Human eye and its parts
MCQs
Students lets learn the structure of eye and its parts in detail by finding the answers of the following MCQs. Then let’s get ready for the journey to study sensation of our vision
Q.1) The average diameter of human eyeball is about…
a) 2.8 cm b) 2.0 cm c) 2.6 cm d) 2.3 cm
Ans: d)
Explanation: d) average diameter for normal human eye is 2.3 cm
Q.2) Eyeball appears white in colour due…
a) iris b) sclera c) retina d) WBC
Ans: b)
Explanation: b) white coloured tissues present in eyeball gives it white colour
Q.3) When light enter our eyes, first refraction of light is takes place from…
a) cornea b) sclera c) retina d) iris
Ans: a)
Explanation: b) thin and transparent layer over eyeball produces first refraction
Q.4) Harshit has brown colour at the middle of eyeball behind the cornea is due to…
a) sclera b) colour tissues c) iris d) retina
Ans: c)
Explanation: c) colour of eye is due to iris, which is genetically carried out from generations to generations
Q.5) The part of light which expands or contracts when light of more or less intensity strikes on eye is…
a) sclera b) pupil c) iris d) retina
Ans: b)
Explanation: b) pupil expands or contracts to control the amount of light enters in it
Q.6) How many layers are basically contained in eyeball?
a) 1 b) 2 c) 3 d) 3
Ans: c)
Explanation: c) eyeball has three layers which are sclera, choroid and retina
Q.7) Which part of eye controls the blood circulation in it and provides necessary nutrients?
a) sclera b) choroid c) iris d) retina
Ans: b)
Explanation: b) choroid controls blood circulation and provides nutrients to eye
Q.8) What is the average focal length of lens of normal human eye?
a) 2.5 cm b) 2.0 cm c) 3.5 cm d) 3.0 cm
Ans: a)
Explanation: a) average focal length of lens of eye is 2.5 cm.
Q.9) Structure of lens of eye is……
a) solidus b) liquidise c) both a and b d) crystalline
Ans: d)
Explanation: d) eye lens is crystalline material made up transparent fibres.
Q.10) What type of lens do human eye have?
a) biconvex b) biconcave c) planoconcave d) planoconvex
Ans: a)
Explanation: a) eye lens is biconvex converging lens, which converges the light at retina
Q.11) Which of the property of light we can relate with eye lens
a) dispersion b) scattering c) convergence d) divergence
Ans: c)
Explanation: c) eye lens is biconvex converging lens, hence converge the light at retina
Q.12) The part of eye which acts as focus of converging lens of eye is known as…
a) retina b) choroid c) iris d) pupil
Ans: a)
Explanation: a) after refraction from the biconvex lens, all the rays gets collected at screen like layer of muscles called as retina.
Q.13) The biconvex lens produces…….. on retina.
a) real and erected b) virtual and erected c) virtual but inverted d) real and inverted
Ans: d)
Explanation: d) the converging lens produces real and inverted image of object
Q.14) The light sensitive tissues known as photoreceptors are composed in …..
a) retina b) choroid c) iris d) pupil
Ans: a)
Explanation: a) retina is made of light sensitive cells known as photoreceptors which gets excited when light falls on them.
Q.15) The dark muscular diaphragm which controls the size of pupil is known as…..
a) retina b) choroid c) iris d) pupil
Ans: c)
Explanation: c) iris is dark muscular diaphragm having small opening called as pupil.
Q.16) Divyashri was enjoying favourite cartoon programme but by sitting very close to TV screen, after some time she complained about headache, its due to….
a) eyes was continuous opened for long time.
b) the sound was reaching to her ears more loudly.
c) small distance from screen received more light so pupil was expanded.
d) all of above contributed for headache
Ans: d) all the reasons mentioned are valid to create headache
Q.17) What is horizontal field view with one eye we can have?
a) 1500 b) 1700 c) 1800 d) 1000
Ans: c)
Explanation: c) with one eye human being can have horizontal field view of 1500 only
Q.18) What is horizontal field view with our both eye we can have?
a) 1500 b) 1700 c) 1800 d) 1000
Ans: c)
Explanation: a) with the eyes human being can have horizontal field view of 1800
Q.19) The image formed at retina is sent to brain with help of…
a) optical nerves b) blood vessel c) light cells d) none of these
Ans: a)
Explanation: a) Optical nerves send the image formed by retina to brain.
Q.20) What is minimum distance of distinct vision for normal human eye?
a) 10 cm b) 15 cm c) 20 cm d) 25 cm
Ans: d)
Explanation: d) minimum distance of distinct vision for normal human eye is 25 cm.
Q.21) The part in eye which detects intensity of light is known as…
a) optical nerves b) blood vessel c) light cell d) rod cell
Ans: a)
Explanation: d) Rod cells in eye detects the intensity of light whether it is bright or dim.
Q.22) Due to presence of ………… human eye can compare the different wavelengths or colours of light
a) optical nerves b) blood vessel c) cone cell d) rod cell
Ans: a)
Explanation: c) 3 cone cells present in eye which can distinguish the different colours.