A student recorded the following sets of observations during the experiment to trace the path of a ray of light passing through an equilateral glass prism. S. No. ∠ i (angle of incidence) ∠ δ (angle of deviation) ∠ e (angle of emergence) I 30 ° 19 ° 77 ° II 40 ° 26 ° 46 ° III 50 ° 41 ° 51 ° IV 54 ° 59 ° 65 ° Which is the incorrect observation and why?

The relation between angle of incidence, angle of emergence, angle of prism and angle of deviation is ∠ A + ∠ δ = ∠ i + ∠ e Among the observations, the observation I is incorrect as for these readings ∠ A + ∠ δ ≠ ∠ i + ∠ e .

E M B I B E

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 1

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10th CBSE

IMPORTANT

Earn 100

Which colour has the maximum deviation when passing through a prism?

Important Questions on The Human Eye and Colourful World

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10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 2

Draw path of a ray of light through a glass prism and show the angle of deviation.

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IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 3

What are the apparatus required in performing the experiment tracing the path of a ray of light passing through a prism?

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IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 4

For the refraction of a ray of light through a glass prism, the path of a ray of light is shown below, what angles are represented by

X

,

M

and

Z

respectively?
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IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 5

In the diagram, an incident ray

P Q

strikes the refracting surface of an equilateral glass prism. Which is the correct path of emergence ray and why?
Question Image

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10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 6

Define the angle of deviation.

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10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 7

What is the angle of deviation in the diagram given below?
Question Image

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10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>IMPORTANT QUESTIONS>Q 8

A student recorded the following sets of observations during the experiment to trace the path of a ray of light passing through an equilateral glass prism.

S. No.	$∠ i$ (angle of incidence)	$∠ δ$ (angle of deviation)	$∠ e$ (angle of emergence)
I	$30 °$	$19 °$	$77 °$
II	$40 °$	$26 °$	$46 °$
III	$50 °$	$41 °$	$51 °$
IV	$54 °$	$59 °$	$65 °$