HARD
10th ICSE
IMPORTANT
Earn 100

What is a periscope? Explain the working of a periscope that uses two right-angled prisms.

Important Questions on Refraction at Plane Surfaces

MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 17
Why does an empty test tube dipped in water shine?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 18
 A light ray falls normally at one face of an equilateral glass μga=32 prism. Will this ray be able to emerge out from the other refracting face of the prism? Draw a neat ray diagram to explain and trace the path of the ray.
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 19
A thin hollow prism is completely filled with water μwa=43. A light ray falls normally on one face of this prism and emerges from the second face along the surface of the prism. What is the refracting angle of this prism?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 20
Draw a ray diagram to illustrate the bending of a stick in water.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 21
Explain why does the rising sun appear bigger?
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 22
Explain that particular case when in refractions real and apparent depths becomes equal.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 23
Glass is a transparent material but glass powder is opaque. Explain.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 4 - Refraction at Plane Surfaces>QUESTIONS>Q 24

ABC is a solid glass block. Assuming critical angle for glass as 42°, complete the path of the ray PQ as it enters the block.

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