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Test: Reflection of Light - Class 10 MCQ


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15 Questions MCQ Test Science Class 10 - Test: Reflection of Light

Test: Reflection of Light for Class 10 2024 is part of Science Class 10 preparation. The Test: Reflection of Light questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Reflection of Light MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Reflection of Light below.
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Test: Reflection of Light - Question 1

What type of reflection occurs when light rays fall on a rough surface and are reflected in different directions?

Detailed Solution for Test: Reflection of Light - Question 1
Diffused reflection is the type of reflection that occurs when light rays fall on a rough surface and are reflected in different directions. Unlike regular or specular reflection, which occurs on smooth surfaces, diffused reflection results in scattered light rays due to the surface's roughness.
Test: Reflection of Light - Question 2

Which type of reflection is characterized by a uniform layer of highly reflective material like powder on a surface?

Detailed Solution for Test: Reflection of Light - Question 2
Specular reflection is characterized by a clear and sharp reflection, typical of mirrors. This type of reflection occurs when a surface, such as a mirror, is coated with a uniform layer of a highly reflective material like powder. The reflective surface ensures that almost all incident light is uniformly reflected, minimizing haziness and blurring to provide a distinct and well-defined reflection.
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Test: Reflection of Light - Question 3

What term describes a straight line indicating the direction of light movement?

Detailed Solution for Test: Reflection of Light - Question 3
A ray of light is a straight line that shows the direction of light movement. It helps in understanding how light travels and interacts with various surfaces.
Test: Reflection of Light - Question 4
What type of reflection enables us to see non-shiny objects?
Detailed Solution for Test: Reflection of Light - Question 4
Diffused reflection is the type of reflection that occurs on rough surfaces and enables us to see non-shiny objects. Unlike regular or specular reflection, where light rays bounce off a smooth surface at equal angles, diffused reflection scatters light in various directions due to surface irregularities, resulting in the visibility of non-shiny objects.
Test: Reflection of Light - Question 5

What term describes a straight line showing the direction of light movement?

Detailed Solution for Test: Reflection of Light - Question 5

A ray of light is a straight line that indicates the direction of light movement. It helps us visualize the path that light takes when traveling from a source to another point, aiding in understanding various optical phenomena.

Test: Reflection of Light - Question 6
What defines the angle at which a ray of light approaches a reflecting surface?
Detailed Solution for Test: Reflection of Light - Question 6
The angle at which a ray of light approaches a reflecting surface is known as the angle of incidence. Understanding this angle is crucial in predicting how light will reflect off a surface, contributing to various optical phenomena we observe in daily life.
Test: Reflection of Light - Question 7
What happens during regular reflection of light?
Detailed Solution for Test: Reflection of Light - Question 7
Regular reflection occurs when parallel light rays fall on a smooth plane surface like a mirror, resulting in all rays of light being reflected parallel along a definite direction. This type of reflection leads to a clear and sharp image, as seen in mirrors, where the reflected light retains its original parallel arrangement.
Test: Reflection of Light - Question 8
What is the term for a bunch of light rays at a point?
Detailed Solution for Test: Reflection of Light - Question 8
A beam of light refers to a collection of light rays or a bundle of rays at a specific point. Understanding how light behaves in beams is essential in optics and the study of light propagation in various mediums.
Test: Reflection of Light - Question 9

What type of reflection is also known as specular reflection?

Detailed Solution for Test: Reflection of Light - Question 9

Specular reflection, also known as regular reflection, refers to a clear and sharp reflection, like the ones you get in a mirror. It occurs when parallel light rays fall on a smooth plane surface, such as a mirror, and are reflected parallel along a definite direction. This type of reflection results in a mirror-like reflection where the angles of reflection are uniform, leading to a clear and sharp image.

Test: Reflection of Light - Question 10

The ray of light that falls on a polished surface is called the _____.

Detailed Solution for Test: Reflection of Light - Question 10

The incident ray is the ray of light that falls on a polished surface or a mirror before reflection occurs. It is a fundamental concept in understanding the reflection of light.

Test: Reflection of Light - Question 11

What happens to the number of images formed as the angle between two mirrors decreases in multiple reflections?

Detailed Solution for Test: Reflection of Light - Question 11

Test: Reflection of Light - Question 12

Assertion (A): Regular reflection occurs when parallel light rays fall on a smooth plane surface like a mirror.

Reason (R): A mirror is made of glass coated with a highly reflective material, resulting in specular reflection.

Detailed Solution for Test: Reflection of Light - Question 12
  • Assertion Evaluation: The assertion regarding regular reflection occurring on a smooth surface like a mirror is correct based on the definition provided in the text.
  • Reason Evaluation: The reason statement explaining that mirrors are made of glass coated with a highly reflective material, resulting in specular reflection, is also valid.
  • Explanation: While both the assertion and reason are true, the reason does not directly explain why regular reflection occurs on a smooth surface. Specular reflection, although related to mirrors, does not directly explain the concept of regular reflection. Therefore, Option B is the correct choice.
Test: Reflection of Light - Question 13

Reflection of Light:
(i) The angle of incidence is always equal to the angle of reflection.
(ii) The reflected ray is the ray that bounces back after striking a surface.
(iii) The incident ray is the ray that gets absorbed by a polished surface.
(iv) The normal is a line perpendicular to the reflecting surface.
The correct statements are:

Detailed Solution for Test: Reflection of Light - Question 13
  • Statement (i) is correct as per the Law of Reflection that states the angle of incidence is always equal to the angle of reflection.
  • Statement (ii) is correct because the reflected ray is indeed the ray that bounces back after striking the surface.
  • Statement (iii) is incorrect because the incident ray is the ray of light that falls on the surface, not the one that gets absorbed.
  • Statement (iv) is correct as the normal is defined as a line perpendicular to the reflecting surface. Thus, the correct statements are (i), (ii) and (iv).
Test: Reflection of Light - Question 14
Choose the correctly matched pair.
Detailed Solution for Test: Reflection of Light - Question 14
  • Option A: (a) Incident Ray - The ray that bounces back from a surface This is incorrect. The incident ray is actually the ray of light that falls on a polished surface, not the one that bounces back.
  • Option B: (b) Reflected Ray - The ray that falls on a polished surface This is incorrect. The reflected ray is the ray of light that bounces back from the polished surface, not the one that falls on it.
  • Option C: (c) Normal - A line at a right angle to the reflecting surface This is correct. The normal is indeed a line that is perpendicular (at a right angle) to the reflecting surface at the point of incidence.
  • Option D: (d) Beam of Light - A straight line that shows the direction of light This is incorrect. A beam of light is a bundle of light rays, whereas a straight line showing the direction of light is called a ray of light.

Therefore, the correctly matched pair is Option C: (c) Normal - A line at a right angle to the reflecting surface.

Test: Reflection of Light - Question 15

What type of reflection occurs when parallel light rays fall on a smooth plane surface like a mirror?

Detailed Solution for Test: Reflection of Light - Question 15

Regular Reflection happens when parallel light rays fall on a smooth plane surface like a mirror, resulting in all rays of light being reflected parallel along a definite direction. This type of reflection is characterized by clear and sharp reflections, similar to those seen in mirrors.

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