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NCERT Solutions for Class 10 Science in Hindi Download NCERT Solutions for Class 10 Science in PDF. NCERT Solutions Science Class 10 are very important information that helps the students in understanding the complex topics and helps them in the preparation of Class 10 board myboat344 boatplansng the answers to the questions in the textbook will check your understanding of a particular topic and helps you determine your strengths and. Feb 19, �� Class 10 Science Notes in Hindi Medium Pdf -NCERT. Each one of you wants to be successful in your life. And it is not difficult. You can be successful in your life by getting a quality education. You go to school daily and learn new things. In this way, you learn new things every day. And the modern time is a time of Science and Technology. NCERT Solutions for Class 10 Science: National Council of Educational Research and Training (NCERT) is a self-governing organization of the Indian government that provides the curriculum for CBSE and some state board schools in myboat344 boatplans the candidates appearing for different board exams of Class 10 can refer to this NCERT Syllabus and prepare for their examinations which in turn helps.
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Life Processes chapter deals with the various biological processes and reaction taking place in organisms. Some major topics covered in this chapter are:. Control and Coordination chapter gives details of different ways in which organisms respond to the stimuli.

Here you also get to know about the human nervous system, automatics and voluntary actions, exocrine and endocrine glands, etc. How do Organisms Reproduce chapter students get to learn different methods of reproduction in plants and animals and get aware of the various methods of birth control in humans. Some of the important topics discussed in this chapter are:.

Heredity And Evolution chapter deals with the details related to heredity and evolution of different species. Go through the major topics mentioned below:. Light Reflection and Refraction explains the concepts of reflection and refraction of light. Some important topics to learn from this chapter are:. The Human Eye and Colorful World chapter students get to know each and every detail of the human eye from its structure to its working.

Various defects of vision are also discussed here. It also explains atmospheric refraction and various phenomena related to it. Some major topics discussed in this chapter are:. Support your answer with reason. Answer: a Concave mirrors are used as reflectors in 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 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 of the lens to form the image of the given object, as shown in the following figure. Case II: When the lower half 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 Ncert Solutions For Class 10th Science In Hindi Medium Quiz 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 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 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 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 the size and the nature of the image. The image is real, inverted and enlarged in size.

Question 16 Find the focal length of a lens of power What type of lens is this? Find the focal length of the lens. Is the prescribed 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 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 an erect and enlarged image of an object. Answer: When an object is placed between the pole and the principal focus of a 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 preferred as a rear-view mirror in vehicles because they give a wider field of view, which allows the driver to see most of 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 air enters obliquely into water. Answer: The light ray bends towards the normal. When a ray of light travels from an optically rarer 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 Ncert 10th Science Solution Hindi Medium Price will bend towards the normal.

Light enters from air to glass having refractive index 1. Answer: 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 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 length 1m. Power of lens is defined as the reciprocal of its focal length. It is denoted by D. A convex lens forms 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 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. The mirror is likely to be a plane b concave c convex d Either plane or convex Answer: d Either plane or convex. You can also download the Class 10 Science solution Hindi medium from Vedantu app as well by following the similar procedures, but you have to download the app from Google play store before doing that. The best feature of these solutions is a free download option.

Students of Class 10 can download these solutions at any time as per their convenience for self-study purpose.

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