In an experiment to trace the path of a ray of light passing through a glass slab, four students tabulated their observations as given below: Students → A B C D ∠ i 30 ° 30 ° 30 ° 30 ° ∠ r 18 ° 20 ° 17 ° 21 . 5 ° ∠ e 32 ° 32 . 5 ° 30 ° 34 . 5 ° Which student performed the experiment most correctly and why?

For refraction from rarer to a denser and then from denser to a rarer medium angle of incidence ∠ i is slightly greater than angle of refraction ∠ r and equal to angle of emergence ∠ e . Therefore, student C performed the experiment most correctly.

MEDIUM

10th CBSE

IMPORTANT

Earn 100

What is the correct method of placing the pins $P_{3}$ and $P_{4}$ in the experiment to trace the path of a ray of light through a rectangular glass slab using pins $P_{1}, P_{2}, P_{3}$ and $P_{4}$ ?

Important Questions on Light - Reflection and Refraction

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 22

Give the diagram which represents the correct angle of incidence

i

, angle of refraction

r

and angle of emergence

e

for the experiment tracing the path of light passing through a rectangular glass slab.

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 23

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

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 24

A student performs the experiment on tracing the path of a ray of light through a rectangular glass slab for four different angles of incidence. He measures the angle of incidence

∠ i

, angle of refraction

∠ r

and angle of emergence

∠ e

for all his observations. What would he find in all the cases?

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 25

After performing the experiment to trace the path of a ray of light passing through a glass slab for different angles of incidence, for students prepared the following observation tables. Which of the observations is likely to be correct?

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 26

A student traces the path of a ray of light passing through a rectangular glass slab. For measuring the angle of incidence, which position of the protractor is likely to be correct and why?

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 27

In an experiment to trace the path of a ray of light passing through a glass slab, four students tabulated their observations as given below:

Students $\to$	A	B	C	D
$∠ i$	$30 °$	$30 °$	$30 °$	$30 °$
$∠ r$	$18 °$	$20 °$	$17 °$	$21.5 °$
$∠ e$	$32 °$	$32.5 °$	$30 °$	$34.5 °$

Which student performed the experiment most correctly and why?

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 28

In an experiment to trace the path of a ray of light passing through a glass slab, four students $A, B, C$ and $D$ used the following values of angle of incidence and the distance between the feet of two pins (fixed on the incident ray).

Out of these, which is the best choice and why?

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 4 - Light - Reflection and Refraction>PRACTICAL SKILLS BASED QUESTIONS>Q 29

What precautions should be taken for the experiment to trace the path of a ray light passing through a glass slab?

What is the correct method of placing the pins P3 and P4 in the experiment to trace the path of a ray of light through a rectangular glass slab using pins P1, P2, P3 and P4?

Important Questions on Light - Reflection and Refraction

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What is the correct method of placing the pins $P_{3}$ and $P_{4}$ in the experiment to trace the path of a ray of light through a rectangular glass slab using pins $P_{1}, P_{2}, P_{3}$ and $P_{4}$ ?