Ncert Solutions Class 10th Physics Chapter Light Data
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Chapter 5 - Periodic Classification of Elements. Chapter 6 - Life Processes. Chapter 7 - Control and Coordination. Chapter Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data 8 - How do Organisms Reproduce? Chapter 9 - Heredity and Evolution. Chapter 10 - Light Reflection and Refraction. Chapter 11 - Human Ncert Solutions Class 10th Physics Chapter Light Data Eye and Colourful World. Chapter 12 - Electricity. Chapter 13 - Magnetic Effects of Electric Current. Chapter 14 - Sources of Energy. Chapter Ncert Solutions Class 10th Physics Chapter Light Data 15 - Our Environment.
Chapter 16 - Management of Natural Resources. It is quite necessary to have at least basic knowledge of Ncert Solutions Class 10th Physics Chapter Light Data Science which may help you in the future. Class 10 Science Chapter 10 NCERT Solutions are structured in a comprehensive and presentable way to provide students with complete coverage of the topics and scientific terms which can help students in scoring well in their exams as well as gain perspective towards career goals.
Chapter 10 Class 10 Science is mostly about reflection and refraction of light. The main Ncert Solutions Class 10th Physics Chapter Light Data topics included consist of spherical mirrors, magnification, reflection, refraction and power of a lens.
To provide simplification, Light Reflection and Refraction Class 10 Solutions include various diagrams, logical problems and detailed content in simple words.
The topic Reflection of Light Class 10 refers to light waves bouncing off the surface of objects that do not have the capability of absorbing energy produced by radiation. A surface of a pool, for example, will display clarity of surrounding objects when still. Whereas, all the rays would be scattered once a rock is thrown inside it preventing systematic reflection of light. Is the image larger or smaller than the object?
Draw a ray diagram to show the image formation in this case. Answer: A concave mirror gives an erect image when the object is placed between the focus Ncert Solutions Class 10th Light Chapter Error F Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data and the pole P of the concave mirror, i. The image thus formed will be virtual, erect and larger than the object. Question Ncert Solutions Class 10th Physics Chapter Light Data 8 Name the type of mirror used in the following situations. Support your answer with reason. Answer: a Concave mirrors are used as reflectors in Ncert Solutions Class 10th Physics Chapter Light Engine headlights of cars.
When a bulb is located at the focus of the concave mirror, the light rays after reflection from the mirror travel over a large distance as a parallel beam of high intensity. Question 9 One-half of a convex lens is Ncert Solutions Class 10th Physics Chapter Light Data covered with a black paper.
Will this lens produce a complete image of the object? Verify your answer experimentally. Explain your observations. Answer: A convex lens forms complete image of an object, even if its one half is covered with black paper.
It can be explained by considering following two cases. Case I : When the upper half of the lens is covered In this case, a ray of light coming from the object will be refracted by the lower half of the lens. These rays meet at the other side Ncert Solutions Class 10th Physics Chapter Light Data of the lens to form the image of the given object, as shown in the following figure. Case II: When the lower half Ncert Solutions Class 10th Physics Chapter Light Data of the lens Is covered In this case, a ray of light coming from the object is refracted by the upper half of the lens.
These rays meet at the other side of the lens to form the image of the given object, as shown in the given figure. Question 10 An object 5 cm in length is held 25 cm away from a converging lens of focal Ncert Solutions Class 10th Physics Chapter Light Data length 10 cm.
Draw the ray diagram and find the position, size and the nature of the image formed. The negative value of image height indicates that the image formed is inverted. The position, size, and nature of image are shown alongside in the ray Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data diagram. Question 11 A concave lens of focal length 15 cm forms an image 10 cm from the lens.
How far is the object placed from the lens? Draw the ray diagram. Question 12 An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image. Thus, image is virtual, erect and diminished. What Ncert Solutions Class 10th Physics Chapter Light Data does this mean? Question 14 An object 5. Find the position of the image, its nature and size.
Question 15 An object of size 7. At what distance from the mirror should a screen be placed, so that a sharp focussed image can be obtained? Find Ncert Solutions Class 10th Physics Chapter Light Data the size and the nature of the image. The image is real, inverted and enlarged in size.
Question 16 Find the Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data focal length of a lens of power What type of lens is this? Find the focal length of the lens. Is the prescribed Ncert Solutions Class 10th Physics Chapter Light Data lens diverging or converging?
Reflection of light by curved surfaces; Images formed by spherical mirrors, center of curvature, principal axis, principal focus, focal length, mirror formula Derivation not required , magnification. Refraction; laws of refraction, refractive index. Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula Derivation not required ; Magnification.
Power of a lens;. Formulae Handbook for Class 10 Maths and Science. Question 1. Define Ncert Solutions Class 10th Physics Chapter Light Data the principal focus of a concave mirror?
Answer: Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.
Question 2. The radius of curvature of a spherical mirror is 20 cm. Question 3. Name the mirror that can give Ncert Solutions Class 10th Physics Chapter Light Data an erect and enlarged image of an object. Answer: When an object is placed between the pole and the principal focus of a Ncert Solutions Class 10th Physics Chapter Light Data concave mirror, the image formed is virtual, erect, and enlarged. Question 4. Why do we prefer a convex mirror as a rear-view mirror in vehicles? Answer: Convex mirrors give a virtual, erect, and diminished image of the objects placed in front of them.
They are Ncert Solutions Class 10th Physics Chapter Light Data preferred as a rear-view mirror in vehicles because they give a wider field of view, which allows the driver to see most of Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data the traffic behind him. Find the focal length of a convex mirror whose radius of curvature is 32 cm. A concave mirror produces three times magnified enlarged real image of object placed at 10 cm in front of it. A ray of light travelling in Ncert Solutions Class 10th Physics Chapter Light Data air enters obliquely into water. Answer: The light ray bends towards the normal.
When a ray of light travels from an optically rarer Ncert Solutions Class 10th Physics Chapter Light Data medium to an optically denser medium, it gets bent towards the normal. Since water is optically denser than air, a ray of light travelling from air into the water will bend towards the normal.
Light enters from air to glass having refractive index 1. Answer: Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data Refractive index of a medium nm is given by,. Find out, from Table, the medium having highest optical density. A medium which has the highest refractive index will have the highest optical density and vice-versa.
It can be observed from table Therefore, diamond has the highest optical density and air has the lowest optical density. You are given kerosene, turpentine and water. Answer: The light can travel fast 10th Data Ncert Chapter Class Physics Light Solutions Ncert Class 10th Solutions Light Chapter Data Physics through water. Question 5. The refractive index of diamond is 2. This suggests that the speed of light in diamond will reduce by a factor 2. Define one dioptre of power of a lens?
Answer: One dioptre is the power Of a lens Of focal Ncert Solutions Class 10th Physics Chapter Light Data length 1m. Power of lens is defined as the reciprocal of its focal length. It is denoted by D. A convex lens forms Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data a real and inverted image of a needle at a distance of 50 cm from it. Where is the needle placed in front of the lens if the image is equal to the size of the object?
Also find the power of the lens. The Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data position of image should be double the focal length. Hence, the object should be at 2f. Find the power of a concave lens of focal length 2 m. Which one of the following materials cannot be used to make a lens? Where should an object b. A spherical mirror and a thin spherical lens have each a focal length of 15 cm.
The mirror and the lens are likely to be: a both concave b both convex c the mirror is concave, but the lens is convex d the mirror is convex, but the lens is concave Answer: a Both concave. No matter how far you stand from a mirror, your Image appears erect.Ncert Solutions Class 10th Physics Chapter Light Data
The mirror is likely to be a plane b concave c convex d Either plane or convex Answer: d Either plane or convex. Question 6. Question 7. We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. For getting an erect image using a concave mirror, the object should be placed at a distance less than the focal length.
The image formed will be virtual, enlarged and erect. Question 8. Name the type of mirror used in the following situations. Answer: a Concave mirror, to get powerful and parallel beams of light.
Question 9. One half of a convex lens is covered with a Ncert Solutions Class 10th Physics Chapter Light Data black paper. Answer: Yes, even when one half of the lens is covered with a black paper, complete image of the object will be formed.
Take a convex lens and focus the light from a distant object onto a screen. As expected an image sharp is formed at a distance equal to the focal length Cover the lower or the upper half of the lens and focus the light from the same object onto the same Ncert Solutions Of Class 10th Maths Chapter 12 3?? screen.
You will be able to get a sharp image again; however the brightness of Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data the image will be less in the second case. The same effect w,ll be seen even if the lens is half covered with black strips. Question An object 5cm in length is held 25cm away from a converging lens of focal length 10 cm.
Draw a ray diagram and find the position, size and the nature of the image formed. It is real and inverted, and smaller Solutions Ncert Light 10th Physics Class Chapter Data in size than the object. How far is the object placed from the Pens? An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm.
Answer: This means that size of the image is equal to the size of the object. An object 5. Find the position of the image nature and size. An object of size 7. At what distance from the mirror should a screen be placed, so that a sharp focused image can be obtained? Find the focal length Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data of a lens of power Hold a highly polished steel spoon curved inwards close to your face and move it slowly away from Ncert Solutions Class 10th Physics Chapter Light Data your face.
What will you observe? When the spoon is at a small distance from the face such that, the object lies between Ncert Solutions Class 10th Physics Chapter Light Data pole and focus of concave mirror, so an enlarged and erect image of your face will be observed but as the spoon Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data is slowly moved away from the face, the image becomes smaller and appears inverted.
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be [NCERT] a plane b concave c convex d either plane or convex Answer: Ncert Solutions Class 10th Physics Chapter Light Data d Plane mirrors and convex mirrors always form the erect images. The image formed by a concave mirror is observed to be Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data Ncert Solutions Class 10th Physics Chapter Light Data virtual, erect and larger than the object.
An object AB is placed in front of a convex lens at its centre of curvature as shown in figure below. Four students traced the path of light ray after refraction through the lens.
Which one of them is correct? The image formed is real and inverted. A spherical mirror and a thin spherical lens have each of a focal length cm.
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