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Physics Class X Chapter-10 Chapter-11 Chapter-12 Chapter-13 Chapter-14
Chapter 11 : Light – Human Eye and Colorful World Answers
We are also conducting class room program for the preparation of AMU/JMI XI/Dip.Engg. Entrance Test-2018
Q1: Which of the following is not the sense organ in our body?
a) Eyes b) Skin c) Tongue d) None
Q2: Which of following is an example of natural optical instrument?
a) Eyes b) Binocular c) Telescope d) None
Q3: What is the approximate dia of eyeball?
a) 1.5cm b) 2.3cm c) 5.2cm d) 6.0cm
Q4: Where does the most of the refraction for the light rays entering the eye takes place?
a) At the outer surface of the cornea
b) At the inner surface of the cornea
c) Inside the pupil
d) At the outer surface of the lens
Q5: The size of pupil is control by
a) Cornea b) Iris c) Lens d) both a & b
Q6: The amount of light entering the is controlled by
a) Cornea b) Iris c) Pupil d) both a & b
Q7: Image formed by the eye lens on the retina is
a) Real & Erect b) Real & Inverted c) Virtual & Erect d) Virtual & Inverted
Q8: Which of the following provides the finer adjustment of focal length required to focus objects at different distances on the retina.
a) Cornea b) Lens c) Iris d) Retina
Q9: Which of the following contains light sensitive cells?
a) Cornea b) Lens c) Iris d) Retina
Q10: The electrical signal of an image of an object formed at the retina are sent to the brain via
a) The optic nerves b) Cranial nerves c) Iris d) Retina
Q11: When someone enters from dim light to the light bright light area
a) The iris expands the pupil to allow more light to enter the eye.
b) The iris contracts the pupil to allow less light to enter the eye.
c) The cornea expands the pupil to allow more light to enter the eye.
d) The cornea contracts the pupil to allow less light to enter the eye.
Q12: When someone enters from bright light to the light dim light area
a) The iris expands the pupil to allow more light to enter the eye.
b) The iris contracts the pupil to allow less light to enter the eye.
c) The cornea expands the pupil to allow more light to enter the eye.
d) The cornea contracts the pupil to allow less light to enter the eye.
Q13: The curvature of eye lens can be adjusted by the
a) Cornea b) Ciliary muscles c) Iris d) Retina
Q14: The focal length of the eye lens is adjusted with help of
a) Cornea b) Ciliary muscles c) Iris d) Retina
Q15: When the Ciliary muscles are relaxed
a) The lens becomes thin. Thus, its focal length increases.
b) The lens becomes thin. Thus, its focal length decreases.
c) The lens becomes thick. Thus, its focal length decreases.
d) The lens becomes thick. Thus, its focal length increases.
Q16: Slight adjustment of the eye lens to increase its focal length helps
a) To see distant objects clearly
b) To see nearby objects clearly
c) Both a & b
d) None
Q17: While looking at objects closer to the eye,
a) The ciliary muscles contract due to which the curvature of the eye lens is increased
b) The eye lens becomes thicker.
c) The focal length of the eye lens decreases. This enables us to see nearby objects clearly..
d) All of the above
Q18: The ability of the eye lens to adjust its focal length is called
a) Adjustment b) Relaxation c) Accommodation d) All of these
Q19: For a normal eye the minimum distance from the eyes at which an object can be seen comfortably and distinctly is
a) 25mm b) 25cm c) 25m d) infinite
Q20: The minimum distance, at which objects can be seen most distinctly without strain, is called
a) The least distance of distinct vision.
b) The near point of the eye.
c) The far point of the eye.
d) Both a & b
Q21: The farthest point up to which the eye can see objects clearly is called
a) The least distance of distinct vision.
b) The near point of the eye.
c) The far point of the eye.
d) Both a & b
Q22: The farthest point up to which the eye can see objects clearly is called
a) 25mm b) 25cm c) 25m d) infinite
Q23: For an eye suffering from cataract
a) The crystalline lens becomes milky and cloudy.
b) This causes partial or complete loss of vision
c) The vision of the eye can be restored through a cataract surgery
d) All of the above
Q24: The horizontal field of view with one eye is
a) about 120° b) about 150° c) about 160° d) about 180°
Q25: A normal eye can see objects clearly that are
a) Between 25 mm and 25cm.
b) Between 0 cm and 25m.
c) Between 25 cm and infinity.
d) Between 2.5km and infinity
Answers
Previous Next
Science Class X: Chapter-1,Chapter-2,Chapter-3,Chapter-4,Chapter-5,Chapter-6,Chapter-7,Chapter-8,Chapter-9, Chapter-10 Chapter-11 Chapter-12 Chapter-13 Chapter-14
# Students are welcome to discuss online, the above mention MCQs.
The discussion is free for all,appearing in XI/Dip.Engg. Entrance -2018
Office:Silver Plaza, Opposite Kabir Colony , Anoop Shaher Road, Jamalpur Aligarh-202002, U.P-India
Physics Class X Chapter-10 Chapter-11 Chapter-12 Chapter-13 Chapter-14
Chapter 11 : Light – Human Eye and Colorful World Answers
We are also conducting class room program for the preparation of AMU/JMI XI/Dip.Engg. Entrance Test-2018
Q1: Which of the following is not the sense organ in our body?
a) Eyes b) Skin c) Tongue d) None
Q2: Which of following is an example of natural optical instrument?
a) Eyes b) Binocular c) Telescope d) None
Q3: What is the approximate dia of eyeball?
a) 1.5cm b) 2.3cm c) 5.2cm d) 6.0cm
Q4: Where does the most of the refraction for the light rays entering the eye takes place?
a) At the outer surface of the cornea
b) At the inner surface of the cornea
c) Inside the pupil
d) At the outer surface of the lens
Q5: The size of pupil is control by
a) Cornea b) Iris c) Lens d) both a & b
Q6: The amount of light entering the is controlled by
a) Cornea b) Iris c) Pupil d) both a & b
Q7: Image formed by the eye lens on the retina is
a) Real & Erect b) Real & Inverted c) Virtual & Erect d) Virtual & Inverted
Q8: Which of the following provides the finer adjustment of focal length required to focus objects at different distances on the retina.
a) Cornea b) Lens c) Iris d) Retina
Q9: Which of the following contains light sensitive cells?
a) Cornea b) Lens c) Iris d) Retina
Q10: The electrical signal of an image of an object formed at the retina are sent to the brain via
a) The optic nerves b) Cranial nerves c) Iris d) Retina
Q11: When someone enters from dim light to the light bright light area
a) The iris expands the pupil to allow more light to enter the eye.
b) The iris contracts the pupil to allow less light to enter the eye.
c) The cornea expands the pupil to allow more light to enter the eye.
d) The cornea contracts the pupil to allow less light to enter the eye.
Q12: When someone enters from bright light to the light dim light area
a) The iris expands the pupil to allow more light to enter the eye.
b) The iris contracts the pupil to allow less light to enter the eye.
c) The cornea expands the pupil to allow more light to enter the eye.
d) The cornea contracts the pupil to allow less light to enter the eye.
Q13: The curvature of eye lens can be adjusted by the
a) Cornea b) Ciliary muscles c) Iris d) Retina
Q14: The focal length of the eye lens is adjusted with help of
a) Cornea b) Ciliary muscles c) Iris d) Retina
Q15: When the Ciliary muscles are relaxed
a) The lens becomes thin. Thus, its focal length increases.
b) The lens becomes thin. Thus, its focal length decreases.
c) The lens becomes thick. Thus, its focal length decreases.
d) The lens becomes thick. Thus, its focal length increases.
Q16: Slight adjustment of the eye lens to increase its focal length helps
a) To see distant objects clearly
b) To see nearby objects clearly
c) Both a & b
d) None
Q17: While looking at objects closer to the eye,
a) The ciliary muscles contract due to which the curvature of the eye lens is increased
b) The eye lens becomes thicker.
c) The focal length of the eye lens decreases. This enables us to see nearby objects clearly..
d) All of the above
Q18: The ability of the eye lens to adjust its focal length is called
a) Adjustment b) Relaxation c) Accommodation d) All of these
Q19: For a normal eye the minimum distance from the eyes at which an object can be seen comfortably and distinctly is
a) 25mm b) 25cm c) 25m d) infinite
Q20: The minimum distance, at which objects can be seen most distinctly without strain, is called
a) The least distance of distinct vision.
b) The near point of the eye.
c) The far point of the eye.
d) Both a & b
Q21: The farthest point up to which the eye can see objects clearly is called
a) The least distance of distinct vision.
b) The near point of the eye.
c) The far point of the eye.
d) Both a & b
Q22: The farthest point up to which the eye can see objects clearly is called
a) 25mm b) 25cm c) 25m d) infinite
Q23: For an eye suffering from cataract
a) The crystalline lens becomes milky and cloudy.
b) This causes partial or complete loss of vision
c) The vision of the eye can be restored through a cataract surgery
d) All of the above
Q24: The horizontal field of view with one eye is
a) about 120° b) about 150° c) about 160° d) about 180°
Q25: A normal eye can see objects clearly that are
a) Between 25 mm and 25cm.
b) Between 0 cm and 25m.
c) Between 25 cm and infinity.
d) Between 2.5km and infinity
Answers
Previous Next
Science Class X: Chapter-1,Chapter-2,Chapter-3,Chapter-4,Chapter-5,Chapter-6,Chapter-7,Chapter-8,Chapter-9, Chapter-10 Chapter-11 Chapter-12 Chapter-13 Chapter-14
# Students are welcome to discuss online, the above mention MCQs.
The discussion is free for all,appearing in XI/Dip.Engg. Entrance -2018
Office:Silver Plaza, Opposite Kabir Colony , Anoop Shaher Road, Jamalpur Aligarh-202002, U.P-India
Contact Number: +91-9045756384,9548040225.
e-mail id : qacademyaligarh@gmail.com
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