Human Eye and Colourful World Test

Result

Human Eye and Colourful World Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

A prism causes

A
only dispersion

B
only deviation

C
dispersion and deviation both

D
neither dispersion nor deviation
Question 2
1 / -0

When white light is incident on a prism; it is split into constituent columns. Which colour is deviated most?

A
Red

B
Yellow

C
Green

D
Violet
Question 3
1 / -0

The sky appears blue because

A
blue light gets disturbed in the atmosphere.

B
ultraviolet radiations are absorbed in the atmosphere

C
violet and blue lights get scattered more than lights of the other colours by the atmosphere eye is more sensitive for blue colour.

D
Light of all other colours is scattered more than the violet and blue colour lights by the atmosphere
Question 4
1 / -0

At noon the sky appears white because

A
light is least scattered

B
all colours get scattered equally

C
blue colour is scattered the most

D
red colour is scattered the most
Question 5
1 / -0

Which of the following phenomena of light are involved in the formation of a rainbow?

A
Reflection, refraction and dispersion.

B
Refraction, dispersion and total internal reflection.

C
Refraction, dispersion and internal reflection.

D
Dispersion, scattering and total internal reflection.
Question 6
1 / -0

Which of the following statements is correct regarding the propagation of light of different colours of white light in air?

A
Red light moves fastest.

B
Blue light travels faster than green light.

C
All colours of white light move with the same speed.

D
Yellow light moves with the mean speed as that of red and violet lights.
Question 7
1 / -0

The focal length of eye lens increases when eye muscles

A
are relaxed and lens becomes thinner

B
contract and lens becomes thicker

C
are relaxed and lens becomes thicker

D
contract and lens becomes thinner
Question 8
1 / -0

When light rays enter the eye, most of the refraction occur at the

A
crystalline lens

B
outer surface of cornea

C
iris

D
pupil
Question 9
1 / -0

Which of the following statements is correct?

A
A person with myopia can see distinct objects clearly.

B
A person with hypermetropia can see nearby objects clearly.

C
A person with myopia can see nearby objects clearly.

D
A person with hypermetropia cannot see distant objects clearly.
Question 10
1 / -0

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

A
is scattered the most by smoke or fog

B
is scattered the least by smoke or fog

C
is absorbed the most by smoke or fog

D
moves fastest in air

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Re-Attempt Weekly Quiz Competition

Human Eye and Colourful World Test - 7

Result

Human Eye and Colourful World Test - 7

Score

-

Rank

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SHARING IS CARING

Question 1

only dispersion

only deviation

dispersion and deviation both

neither dispersion nor deviation

Question 2

Red

Yellow

Green

Violet

Question 3

blue light gets disturbed in the atmosphere.

ultraviolet radiations are absorbed in the atmosphere

violet and blue lights get scattered more than lights of the other colours by the atmosphere eye is more sensitive for blue colour.

Light of all other colours is scattered more than the violet and blue colour lights by the atmosphere

Question 4

light is least scattered

all colours get scattered equally

blue colour is scattered the most

red colour is scattered the most

Question 5

Reflection, refraction and dispersion.

Refraction, dispersion and total internal reflection.

Refraction, dispersion and internal reflection.

Dispersion, scattering and total internal reflection.

Question 6

Red light moves fastest.

Blue light travels faster than green light.

All colours of white light move with the same speed.

Yellow light moves with the mean speed as that of red and violet lights.

Question 7

are relaxed and lens becomes thinner

contract and lens becomes thicker

are relaxed and lens becomes thicker

contract and lens becomes thinner

Question 8

crystalline lens

outer surface of cornea

iris

pupil

Question 9

A person with myopia can see distinct objects clearly.

A person with hypermetropia can see nearby objects clearly.

A person with myopia can see nearby objects clearly.

A person with hypermetropia cannot see distant objects clearly.

Question 10

is scattered the most by smoke or fog

is scattered the least by smoke or fog

is absorbed the most by smoke or fog

moves fastest in air

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