STANDARD TENPART I & IICHAPTER : 6The Human Eye and The Colourful World /15 0 votes, 0 avg 425 SCIENCE AND TECHNOLOGY – Chapter 6 The Human Eye and The Colourful World 1 / 15 Having two eyes facilitates in:A: Increasing the field of viewB: Bringing three dimensional viewC: Developing the concept of distance/size.Then the correct option is/are: A only A and B only B only A, B and C 2 / 15 A: Astigmatism usually is caused by an irregularly shaped cornea. B: Rainbow is the natural phenomenon in which dispersion takes place. Both ‘A’ and ‘B’ are true statements Both ‘A’ and ‘B’ are false statements. ‘A’ is true while ‘B’ is false. ‘A’ is false while ‘B’ is true 3 / 15 In which of the following cases will no dispersion take place when sunlight passes through it? A B C D 4 / 15 Figure a, b, c respectively; indicate the point in case of: The Hypermetropia eye, the myopic eye and normal eye The normal eye, the myopic eye and Hypermetropia eye The normal eye, the Hypermetropia eye and myopic eye The myopic eye, the normal eye and Hypermetropia eye 5 / 15 Which of the following graph represents the correct variation of angle of incidence (i) and angle of deviation (δ)? A B C D 6 / 15 Which of the following figures correctly represents the passage of white light through prism? A B C D 7 / 15 Blue colour of the sky is due to the phenomenon of: Reflection of light Refraction of light Dispersion of light Scattering of light 8 / 15 The star appear shifted from their actual position due to the phenomenon of: Diffraction of light Scattering of light Refraction of light Reflection of light 9 / 15 When a beam of white light falls on a glass prism, the colour of light which will deviate least is: Violet Red Green Blue 10 / 15 With both eyes open, a person’s field of view is about: 90° 150° 180° 360° 11 / 15 A man finds it difficult to read the odometer on the dashboard of the car but is able to clearly read a distant road sign. Which of the following statement is correct about this man? The near point of his eyes has receded away. The near point of his eyes has come closer to him. The far point of his eyes has receded away. The far point of his eyes has come closer to him. 12 / 15 A got his eye tested. The optician’s prescription for the spectacles was:Left eye: −3 DRight eye: −3.50 DThe person is having a defect of vision called: Presbyopia Myopia Astigmatism Hypermetropia 13 / 15 A person cannot see the distant objects clearly (though he can see the nearby objects clearly). He is suffering from the defect of vision called: Cataract Hypermetropia Myopia Presbyopia 14 / 15 How eyes adjust in order to focus the image of near or distant objects on retina? The lens moves in or out according to the position of the object The retina moves in or out according to the position of the object The lens becomes thicker or thinner according to the position of the object The pupil gets larger or smaller according to the position of the object 15 / 15 The term “accommodation” as applied to the eye, refers to its ability to: Control the light intensity falling on the retina Erect the inverted image formed on the retina Adjust the focal length of the lens Vary the distance between the lens and retina Your score is 0% Restart quiz