Basic Science Solutions for Class 6 Science Chapter 13 Light are provided here with simple step-by-step explanations. These solutions for Light are extremely popular among Class 6 students for Science Light Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Basic Science Book of Class 6 Science Chapter 13 are provided here for you for free. You will also love the ad-free experience on Meritnation’s Basic Science Solutions. All Basic Science Solutions for class Class 6 Science are prepared by experts and are 100% accurate.

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Luminous objects are those that emit light. Eg., the Sun and the electric bulb.

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We see non-luminous objects by the light that is reflected by them.

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We are able to see a stream of light entering through a gap in the curtains of a room, because as it falls on the dust particles in the air, it gets reflected and enters our eyes.

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A shadow is a dark space which is formed behind an opaque object, when the light that is falling on it is blocked.

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Lunar eclipse refers to the shadow of the earth that falls on the moon when the earth comes between the sun and the moon.

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When the light rays falling on an object bounce back, it is called reflection.

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When a mirror forms an image, the left side of the object appears to be the right side and vice versa.

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When an opaque object is placed in the path of light, it blocks the light from passing through it. As light travels in a straight line and cannot bend itself around the object, it is not able to light up the space behind the object. This leads to the formation of a shadow.

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The shadow of a stick fixed in an open field depends on the angle between the light source and the stick. The size of the shadow is shortest when the stick is parallel to the direction of the light rays.

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When the distance between the source of light and object increases, the shadow becomes smaller.
When the distance between the object and screen increases, the shadow on the screen becomes larger.

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Mirrors are made from polished glass by placing a layer of metal at the back of the glass. The metal acts as the reflecting surface for the mirror, enabling us to see the mirror image formed by reflection.

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Mirrors form an image by reflecting the light coming from an object. When this reflected light reaches our eyes, we see the image of the object in the direction of the light reflected by the mirror.



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Transparent objects are those that allow light to pass through them completely. Example: Glass and water.
Translucent objects are those that allow only some part of the light to pass through them. Example: Tracing paper and oil paper.
Opaque objects do not allow light to pass through them. Example: Wood and metal.

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Light travels in a straight line.
Take a bent tube and try to look at an object with the help of this tube. We will not be able to see the object. Now take a straight tube and try to look at the same object with the help of this tube. We will be able to see the object clearly. This shows that light travels in a straight line.

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Solar eclipse occurs when the moon comes in-between the sun and the earth and its shadow falls on earth.
In the small region on earth where the moon's umbra falls, people cannot see the sun. This region has a total solar eclipse. People see a part of the sun in the region where the penumbra falls. This region has a partial solar eclipse.

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A pinhole camera is a simple optical device that forms an image without using a lens or a mirror. It creates a real image of an object, because the image can be captured on a screen. The image formed by a pinhole camera is inverted and smaller than the object.



The images are inverted because light travels in a straight line.  The rays travelling from the top and bottom of an object cross the pinhole and continue to move in a straight line. When they fall on the screen, the rays from the top half of the object are below the rays from the bottom half.

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 (b) Opaque objects do not allow light to pass through them.
Shadows are formed because opaque objects do not allow light to pass through them.

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(c) Translucent objects allow some light to pass through them.

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(c) Does not receive any light.
The umbra region of a shadow does not receive any light.

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(c) One cannot see the sun.
During a solar eclipse, we cannot see the sun.

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(d) Reflects light.
The paint behind the mirror acts to reflect light.

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