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MCQ Questions for Class 10 Science Chapter 11 Human Eye and Colourful World with Answers

Students can practice the NCERT MCQ Questions for Class 10 Science Chapter 11 Human Eye and Colourful World with Answers Pdf free download is available here. Revise all the concepts easily by taking help from the MCQ Questions for Class 10 Science with Answers are prepared based on the latest exam pattern. Students can refer to these Human Eye and Colourful World Class 10 MCQs Questions with Answers and assess their preparation level.

Human Eye and Colourful World Class 10 MCQs Questions with Answers

Question 1.
Image formed on retina in human eye is:
(a) erect but looks inverted
(b) inverted but looks erect
(c) erect and looks also erect
(d) inverted and looks also inverted.
Answer:
(b) inverted but looks erect

Question 2.
Human eye is formed image on:
(a) cornea
(b) iris
(c) pupil
(d) retina
Answer:
(d) retina

Question 3.
The amount of light entering in eye is controlled by:
(a) Iris
(b) Pupil
(c) Ciliary muscle
(d) Suspensory ligaments.
Answer:
(b) Pupil

Question 4.
Far point of a man suffering from short-sightedness is:
(a) at 25 cm
(b) at less than 25 cm
(c) at infinity
(d) at less than infinity.
Answer:
(b) at less than 25 cm

Question 5.
Image formed in normal eye of human is:
(a) on retina
(b) beyond retina
(c) behind retina
(d) at infinity.
Answer:
(a) on retina

Question 6.
Far point for human eye is at:
(a) 25 cm
(b) 50 cm
(c) 100 cm
(d) infinity
Answer:
(d) infinity

Question 7.
Minimum distance of clear vision is:
(a) 25 cm
(b) 2.5 cm
(c) 25 cm
(d) 2.5 cm
Answer:
(c) 25 cm

Question 8.
The defect of long-sightedness is cured by:
(a) concave lens of definite focal length
(b) convex lens of definite focal length
(c) convex lens of any focal length
(d) concave lens of any focal length.
Answer:
(b) convex lens of definite focal length

Question 9.
Eye lens is:
(a) converging
(b) diverging
(c) convex and concave
(d) none of these
Answer:
(a) converging

Question 10.
A person suffering from long-sightedness uses a lens in spectacles is:
(a) concave lens
(b) concave mirror
(c) convex lens
(d) convex mirror
Answer:
(c) convex lens

Question 11.
A person suffering from short-sightedness uses a lens in spectacles is:
(a) concave lens
(b) concave mirror
(c) convex lens
(d) convex mirror
Answer:
(a) concave lens

Question 12.
Near point of a man, which is suffering from defect of long sightedness, is:
(a) at 25 cm
(b) at less than 25 cm
(c) at greater than 25 cm
(d) at infinite
Answer:
(c) at greater than 25 cm

Question 13.
Due to long-sightedness, the image is formed:
(a) at retina
(b) beyond retina
(c) behind retina
(d) indefinite
Answer:
(c) behind retina

Question 14.
A person uses a convex lens of focal length 20 cm in spectacles, the power of lens will be:
(a) -5 D
(b) +5 D
(c) +2 D
(d) -2 D
Answer:
(b) +5 D

Question 15.
Perception of colours by human eye is possible:
(a) at retina
(b) by rod shaped cells of retina
(c) cone shaped cells of retina
(d) by yellow spot.
Answer:
(c) cone shaped cells of retina

Question 16.
The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish
Answer:
(c) Lion

Question 17.
With both eyes open, a person’s field of view is about:
(a) 90°
(b) 150°
(c) 180°
(d) 360°
Answer:
(c) 180°

Question 18.
Having two eyes gives a person:
(a) deeper field of view
(b) coloured field of view
(c) rear field of view
(d) wider field of view
Answer:
(d) wider field of view

Question 19.
The animals of prey have:
(a) two eyes at the front
(b) two eyes at the back
(c) two eyes on the sides
(d) one eye at the front and one on the side
Answer:
(c) two eyes on the sides

Question 20.
The animals called predators have:
(a) both the eyes on the sides
(b) one eye on the side and one at the front
(c) one eye on the front and one at the back
(d) both the eyes at the front
Answer:
(d) both the eyes at the front

Question 21.
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
Answer:
(c) dispersion

Question 22.
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
Answer:
(c) violet

Question 23.
Which of the following colour of white light has the maximum wavelength?
(a) red
(b) orange
(c) violet
(d) blue
Answer:
(a) red

Question 24.
The twinkling of stars is due to atmosphere:
(a) reflection of light
(b) dispersion of light
(c) interference of light
(d) refraction of light
Answer:
(d) refraction of light

Question 25.
The atmospheric refraction of light causes the twinkling of:
(a) planets only
(b) stars only
(c) planets and stars
(d) stars and satellites
Answer:
(b) stars only

Question 26.
Due to atmospheric refraction of sunlight, the time from sunrise to sunset is lengthened by about:
(a) 6 minutes
(b) 2 minutes
(c) 4 minutes
(d) 5 minutes
Answer:
(c) 4 minutes

Question 27.
The blue colour of sky is due to:
(a) refraction of light
(b) dispersion of light
(c) diffraction of light
(d) scattering of light
Answer:
(d) scattering of light

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