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Class 6 Exam  >  Class 6 Tests  >  Eureka Plus Class 6: Book Solutions, Notes & Worksheets  >  Test: Light Shadows and Reflection - Class 6 MCQ

Test: Light Shadows and Reflection - Class 6 MCQ


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20 Questions MCQ Test Eureka Plus Class 6: Book Solutions, Notes & Worksheets - Test: Light Shadows and Reflection

Test: Light Shadows and Reflection for Class 6 2024 is part of Eureka Plus Class 6: Book Solutions, Notes & Worksheets preparation. The Test: Light Shadows and Reflection questions and answers have been prepared according to the Class 6 exam syllabus.The Test: Light Shadows and Reflection MCQs are made for Class 6 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Light Shadows and Reflection below.
Solutions of Test: Light Shadows and Reflection questions in English are available as part of our Eureka Plus Class 6: Book Solutions, Notes & Worksheets for Class 6 & Test: Light Shadows and Reflection solutions in Hindi for Eureka Plus Class 6: Book Solutions, Notes & Worksheets course. Download more important topics, notes, lectures and mock test series for Class 6 Exam by signing up for free. Attempt Test: Light Shadows and Reflection | 20 questions in 10 minutes | Mock test for Class 6 preparation | Free important questions MCQ to study Eureka Plus Class 6: Book Solutions, Notes & Worksheets for Class 6 Exam | Download free PDF with solutions
Test: Light Shadows and Reflection - Question 1
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What is the role of light in visibility?

Detailed Solution for Test: Light Shadows and Reflection - Question 1
Light is crucial for visibility as it enables objects to be seen. Without light, objects would appear dark or completely invisible. This principle is fundamental in understanding how we perceive the world around us.
Test: Light Shadows and Reflection - Question 2
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Which of the following is an example of a luminous object?

Detailed Solution for Test: Light Shadows and Reflection - Question 2
A lighted candle is an example of a luminous object because it produces light on its own. This distinguishes it from objects like a table or a book, which do not generate their own light.
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Test: Light Shadows and Reflection - Question 3
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What distinguishes luminous objects from illuminated objects?

Detailed Solution for Test: Light Shadows and Reflection - Question 3
The key difference between luminous and illuminated objects is that luminous objects have the ability to produce their own light, such as the sun or a lighted candle. In contrast, illuminated objects rely on external light sources for visibility.
Test: Light Shadows and Reflection - Question 4
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Which of the following is a source of natural light?
Detailed Solution for Test: Light Shadows and Reflection - Question 4
The sun is a natural source of light that illuminates our world. Unlike electric bulbs, candles, or flashlights, which are human-made sources of light, the sun is a luminous object that emits light through natural processes like nuclear fusion.
Test: Light Shadows and Reflection - Question 5
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What is the primary reason why illuminated objects appear bright even though they do not produce light themselves?
Detailed Solution for Test: Light Shadows and Reflection - Question 5
Illuminated objects appear bright because they reflect light falling on them. This reflection of light is what makes them visible to our eyes. An interesting fact is that the color we see an object as is the color of light it reflects, not the colors it absorbs.
Test: Light Shadows and Reflection - Question 6
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How does the energy of sunlight compare to the energy of candlelight?
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Sunlight has more energy than candlelight. This is why sunlight is able to provide more light and heat compared to the light produced by a candle. The sun, being a massive star, emits a vast amount of energy in the form of light and heat.
Test: Light Shadows and Reflection - Question 7
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What is the term used to describe energy derived from the sun?
Detailed Solution for Test: Light Shadows and Reflection - Question 7
Energy derived from the sun is known as solar energy. Solar energy plays a crucial role in sustaining life on Earth as it provides light and heat essential for various processes, including photosynthesis in plants.
Test: Light Shadows and Reflection - Question 8
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What process do plants primarily use sunlight for?
Detailed Solution for Test: Light Shadows and Reflection - Question 8
Plants primarily use sunlight for photosynthesis. During photosynthesis, plants convert light energy into chemical energy, producing glucose as a form of stored energy. This process is vital for plant growth and is the foundation of the food chain on Earth.
Test: Light Shadows and Reflection - Question 9
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What is the distance light travels in one year called?
Detailed Solution for Test: Light Shadows and Reflection - Question 9
A light year is the distance that light travels in one year. It is a unit of astronomical distance that is equivalent to about 9.461 trillion kilometers. Despite its name, a light year is a measure of distance, not time. It is used by astronomers to describe vast distances in space, especially when discussing the distances between stars and galaxies.
Test: Light Shadows and Reflection - Question 10
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Which type of object does not allow light to pass through?
Detailed Solution for Test: Light Shadows and Reflection - Question 10
Opaque objects are those that do not allow light to pass through them. Examples of opaque objects include wood, stones, and metals. When light encounters an opaque object, it is either absorbed or reflected, preventing it from passing through the object. This property of opacity is what distinguishes opaque objects from translucent and transparent objects.
Test: Light Shadows and Reflection - Question 11
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What conditions are necessary for the formation of a visible shadow?
Detailed Solution for Test: Light Shadows and Reflection - Question 11
For a shadow to be visible, the following conditions must be met: there must be a bright light source, the object casting the shadow must be opaque, and there must be a screen or surface to capture the shadow. These conditions allow for the obstruction of light, creating a distinguishable shadow on the surface behind the opaque object.
Test: Light Shadows and Reflection - Question 12
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What is the speed at which light travels?
Detailed Solution for Test: Light Shadows and Reflection - Question 12
Light travels at a tremendous speed of approximately 300,000 kilometers per second in a vacuum. This speed is often denoted as "c" in physics equations and plays a fundamental role in various scientific fields, including astronomy, optics, and relativity. The high speed of light enables it to cover vast distances in a short amount of time, making it a crucial element in our understanding of the universe.
Test: Light Shadows and Reflection - Question 13
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What phenomenon occurs when the Moon comes between the sun and Earth, casting a shadow on Earth?
Detailed Solution for Test: Light Shadows and Reflection - Question 13
A solar eclipse happens when the Moon comes between the sun and Earth, casting a shadow on Earth. During a solar eclipse, the Moon blocks the light of the sun and casts a shadow on certain regions of Earth. This celestial event can be total or partial, depending on the alignment of the sun, Moon, and Earth.
Test: Light Shadows and Reflection - Question 14
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Which property describes the way light travels in straight lines as rays?
Detailed Solution for Test: Light Shadows and Reflection - Question 14
Rectilinear propagation describes the property of light traveling in straight lines as rays. This principle is fundamental in understanding how light behaves when it encounters various surfaces and mediums. Light follows a straight path unless it interacts with another medium or object, causing it to change direction.
Test: Light Shadows and Reflection - Question 15
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What type of mirror reflects light, forming a clear image due to a smooth, polished surface?
Detailed Solution for Test: Light Shadows and Reflection - Question 15
A plane mirror reflects light and forms a clear image due to its smooth, polished surface. When light rays strike a plane mirror, they reflect off the surface at the same angle they hit it, allowing us to see a virtual image of objects in front of the mirror. This property makes plane mirrors useful in everyday applications, such as in bathrooms and dressing rooms.
Test: Light Shadows and Reflection - Question 16
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When Earth's shadow falls on the moon during a full moon, causing total or partial lunar eclipses, what phenomenon is occurring?
Detailed Solution for Test: Light Shadows and Reflection - Question 16
During a lunar eclipse, Earth's shadow falls on the moon during a full moon, leading to total or partial lunar eclipses. This captivating astronomical event occurs when the Earth comes between the sun and the moon, with the moon passing through Earth's shadow. The moon can appear to take on a reddish hue during a total lunar eclipse due to sunlight filtering through Earth's atmosphere and casting a warm glow on the moon.
Test: Light Shadows and Reflection - Question 17
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What type of image is formed when light reflects from a smooth surface?
Detailed Solution for Test: Light Shadows and Reflection - Question 17
When light reflects from a smooth surface, a real image is formed. A real image is formed when light rays converge at a point, either in front of or behind the reflecting surface. This type of image can be projected onto a screen and is the basis for understanding how images are formed in mirrors and other reflective surfaces.
Test: Light Shadows and Reflection - Question 18
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Which of the following characteristics best describes the shadow formed by an opaque object blocking light?
Detailed Solution for Test: Light Shadows and Reflection - Question 18
Shadows formed when an opaque object blocks light are typically nearly always black. This is because the absence of light in the shadow region results in darkness. The shadow only provides the outline of the object, not its color or details, making it a key characteristic of opaque objects blocking light.
Test: Light Shadows and Reflection - Question 19
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In a pinhole camera, what happens when a small hole allows light rays from every point of an object to form an inverted image?
Detailed Solution for Test: Light Shadows and Reflection - Question 19
In a pinhole camera, when a small hole allows light rays from every point of an object to form an inverted image, the image formed is real and inverted. This phenomenon occurs due to the way light rays converge through the pinhole, resulting in an upside-down image on the camera's screen or film. Pinhole cameras are based on the principles of geometric optics and can produce fascinating inverted images.
Test: Light Shadows and Reflection - Question 20
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Which of the following is NOT a topic covered in the chapter on light, shadows, reflections, and their applications in daily life?
Detailed Solution for Test: Light Shadows and Reflection - Question 20
While the chapter covers the basics of light, shadows, reflections, and their applications in daily life, it does not delve into the applications of electricity. Understanding the role of light in our surroundings, the characteristics of shadows, and how reflections work are crucial concepts discussed in the chapter, providing insights into the fundamental principles of optics and their practical implications.
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