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- 1. Multiple Choice
An image is formed on
iris
pupil
retina
cornea
- 2. Multiple Choice
Light enters the eye through a thin membrane called the
Iris
Pupil
Retina
Cornea
- 3. Multiple Choice
Following controls and regulates the amount of light entering the eye
Iris
Pupil
Retina
Corena
- 4. Multiple Choice
_________________ send signals to the brain
Optical nerve
Aqueous Humour
Viterous humour
Eye lens
- 5. Multiple Choice
When the light is very bright, the diameter of pupil
Expends
Contract
Remain same
All of these
- 6. Multiple Choice
To see an object comfortably and distinctly, we must hold it about _______ cm from our eyes.
10
25
15
infinity
- 7. Multiple Choice
The ability of the eye lens to adjust its focal length is called
Accommodation
Accomplish
Composition
None of the above
- 8. Multiple Choice
Myopia and Hypermetropia can be corrected by
Concave and plano-convex lens
Concave and convex lens
Convex and concave lens
Plano-concave lens for both defects.
- 9. Multiple Choice
The image formed on the retina of the human eye is
virtual and inverted
real and inverted
virtual and erect
real and erect
- 10. Multiple Choice
The deflection of light by minute particles and molecules of the atmosphere in all direction is called ____________ of light.
scattering
interference
tyndell effect
Reflection
- 11. Multiple Choice
When white light enters a prism, it gets split into its constituent colours. This is due to
different refractive index for different wavelength of each colour
each colours has same velocity in the prism.
prism material have high density.
Scattering of light
- 12. Multiple Choice
At noon the sun appears white as [NCERT Exemplar Problems]
light is least scattered
all the colours of the white light are scattered away
blue colour is scattered the most
red colour is scattered the most
- 13. Multiple Choice
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
moves fastest in air
is absorbed the most by smoke or fog
is scattered the least by smoke or fog
is scattered the most by smoke or fog
- 14. Multiple Choice
Scattering of light by colloidal solution is known as
Scattering
Dispersion
Tyndall effect
Stability
- 15. Multiple Choice
THE BAND OF SEVEN COLOURS WHICH IS OBTAINED ON SPLITTING OF WHITE LIGHT INTO ITS SEVEN CONSTITUENT COLOURS IS KNOWN AS
SCATTERING
DISPERSION
SPECTRUM
DIFFRACTION PATTERN
- 16. Multiple Choice
COLOUR WHICH IS HAVING MAXIMUM ANGLE OF DEVIATION IS
RED
VIOLET
GREEN
YELLOW
- 17. Multiple Choice
IN CASE OF TOTAL INTERNAL REFLECTION LIGHT GOES FROM
RARER TO DENSER MEDIUM
DENSER TO RARER MEDIUM
ONE MEDIUM TO ANOTHER HAVING SAME REFRACTIVE INDEX
NONE OF THESE
- 18. Multiple Choice
IN CASE OF TOTAL INTERNAL REFLECTION, ANGLE OF REFRACTION FOR CRITICAL ANGLE IS
900
00
450
DEPENDS ON THE MEDIUM
- 19. Multiple Choice
PHENOMENON RESPONSIBLE FOR FORMATION OF RAINBOW
REFRACTION
DISPERSION
T.I.R
ALL THE ABOVE
- 20. Multiple Choice
STARS TWINKLE BCOZ OF
DISPERSION
REFRACTION
REFLECTION
SCATTERING
- 21. Multiple Choice
SKY APPEARS —————- TO AN ASTRONAUT WHEN HE IS ON EARTH
BLUE
BLACK
DARK
VIOLET
- 22. Multiple Choice
PHENOMENON OF SPLITTING OF WHITE LIGHT INTO ITS SEVEN CONSTITUENT COLOURS IS KNOWN AS
SCATTERING
DIFFRACTION
DISPERSION
REFRACTION
- 23. Multiple Choice
What is happening in this picture?The water is making the pencil biggerthe water is refracting (bending) the pencilthe water is refracting (bending) the light to make the pencil look bentlight is being absorbed - 24. Multiple ChoiceWhich of the following is the correct order in which light travels through the eye?Cornea, Lens, Retina, Pupil, Optic NervePupil, Cornea, Lens, Retina, Optic NerveCornea, Retina, Lens, Pupil, Optic NerveCornea, Pupil, Lens, Retina, Optic Nerve
- 25. Multiple Choice
Which eye disease has blurred images and clouding of the lens?
Myopia
Pink Eye
Cataracts
Hypermyopia
- 26. Multiple Choice
REFRACTION OF LIGHT TAKES PLACE IN GLASS SLAB
2 TIMES
ONCE ONLY
3 TIMES
4 TIMES
- 27. Multiple Choice
IN CASE OF PRISM ANGLE OF DEVIATION DEPENDS ON
WAVELENGTH
REFRACTIVE INDEX
ANGLE OF INCIDENCE
ALL THE ABOVE
- 28. Multiple Choice
The ability of eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called____________________
Power of observation of the eye
Power of accommodation of the eye
Power of adjustment of the eye
Power of enabling of the eye
- 29. Multiple Choice
Bi-focal lens are required to correct
presbyopia
astigmatism
coma
myopia
- 30. Multiple Choice
Refraction of light by the earth’s atmosphere due to variation in air density is called
atmospheric reflection
atmospheric dispersion
atmospheric scattering
atmospheric refraction
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