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Class 10 Exam  >  Class 10 Tests  >  Science Class 10  >  Test: Reflection of Light - Class 10 MCQ

Test: Reflection of Light - Class 10 MCQ


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10 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
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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
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What type of reflection enables us to see non-shiny objects?

Detailed Solution for Test: Reflection of Light - Question 2
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.
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Test: Reflection of Light - Question 3
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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 3
  • 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 4
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Choose the correctly matched pair.
Detailed Solution for Test: Reflection of Light - Question 4
  • 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 5
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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 5
As the angle between two mirrors decreases, the number of images formed increases. This is because a smaller angle results in more reflections within the mirror setup, leading to a higher number of images being visible.
Test: Reflection of Light - Question 6
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What type of image is formed by a plane mirror?
Detailed Solution for Test: Reflection of Light - Question 6
A plane mirror always forms a virtual and erect image. The size of the image is equal to the size of the object, and the image is as far behind the mirror as the object is in front of it. Additionally, the image formed is laterally inverted.
Test: Reflection of Light - Question 7
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What happens to the image formed by a spherical mirror when the mirror's curvature changes?
Detailed Solution for Test: Reflection of Light - Question 7
When the curvature of a spherical mirror changes, the position of the image also changes. This is because the curvature affects how light is focused, which in turn alters where the image is formed.
Test: Reflection of Light - Question 8
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If the distance between an object and a plane mirror is 3 meters, how far away from the mirror will the image of the object appear?
Detailed Solution for Test: Reflection of Light - Question 8

In a plane mirror, the image distance is equal to the object distance from the mirror. Therefore, if the object is 3 meters away from the mirror, the image will also appear 3 meters behind the mirror. 

Test: Reflection of Light - Question 9
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An object is placed 5 cm in front of a plane mirror. Calculate the distance between the object and its image formed by the mirror.
Detailed Solution for Test: Reflection of Light - Question 9

When an object is placed in front of a plane mirror:
The image appears to be the same distance behind the mirror as the object is in front of it.
If the object is 5 cm in front of the mirror, the image will be 5 cm behind the mirror.
The total distance between the object and its image is the sum of these two distances.
Thus, the total distance is 5 cm (object to mirror) + 5 cm (mirror to image) = 10 cm.
Therefore, the correct answer is:
B: 10 cm

Test: Reflection of Light - Question 10
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A light ray strikes a plane mirror at an angle of incidence of 35°. What is the angle of reflection?
Detailed Solution for Test: Reflection of Light - Question 10
According to the Law of Reflection, the angle of incidence is always equal to the angle of reflection. Therefore, if a light ray strikes a plane mirror at an angle of incidence of 35°, the angle of reflection will also be 35°.
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