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The Human Eye & the Colorful World - 1 - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - The Human Eye & the Colorful World - 1

The Human Eye & the Colorful World - 1 for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The The Human Eye & the Colorful World - 1 questions and answers have been prepared according to the UPSC exam syllabus.The The Human Eye & the Colorful World - 1 MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for The Human Eye & the Colorful World - 1 below.
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The Human Eye & the Colorful World - 1 - Question 1

Stars twinkle due to

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 1

Stars appear to twinkle in night sky on account of atmospheric refraction.

The Human Eye & the Colorful World - 1 - Question 2

The deflection of light by minute particles and molecules of the atmosphere in all direction is called___________of light.

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 2

The said phenomenon is called scattering of light.

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The Human Eye & the Colorful World - 1 - Question 3

Which of the following diagrams represents refraction of light through a prism correctly ?

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 3

The diagram (iv) represents the correct path of fight ray passing through a prism. On account of refraction through a prism, a light ray bends towards the base of the prism.

The Human Eye & the Colorful World - 1 - Question 4

Refraction of light by the earth’s atmosphere due to variation in air density is called

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 4

This phenomena is called atmospheric refraction.

The Human Eye & the Colorful World - 1 - Question 5

When a beam of white light passes through a glass prism, it splits up into seven colours. This phenomenon is due to

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 5

 Splitting of white light into its constituent seven colours, while passing through a prism, is on account of dispersion of fight.

The Human Eye & the Colorful World - 1 - Question 6

The air layer of atmosphere whose temperature is less than the hot layer behave as optically

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 6

The cold air layer of the atmosphere acts as a optically denser medium than hot air because the molecules are closely packed together.

The Human Eye & the Colorful World - 1 - Question 7

When white light passes through a glass prism

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 7

When white light passes through a glass prism, the violet coloured ray undergoes maximum deviation. The red coloured ray undergoes minimum deviation.

The Human Eye & the Colorful World - 1 - Question 8

When white light enters a prism, it gets split into its constituent colours. This is due to

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 8

Dispersion takes place because refractive index of the material of prisra is different for different wavelength.

The Human Eye & the Colorful World - 1 - Question 9

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

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 9

Phenomena of refraction, dispersion and internal reflection are involved in the formation of rainbow.

The Human Eye & the Colorful World - 1 - Question 10

The image formed on the retina of the human eye is

Detailed Solution for The Human Eye & the Colorful World - 1 - Question 10

Eye lens is convex, in nature. So, image formed by it on the retina is real and inverted.

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