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11.04.2021, adminChapter 10 Light Reflection and Refraction is one of those but it is a scoring one. With the help of NCERT solutions for class Lorem lpsum 337 boatplans/model/hurricane-boats-models-game continue reading science chapter 10 Light and Reflection and Refraction you will able to understand all the interesting questions related to reflections and different types of lenses, mirrors. If you have any problem in answering the questions or you are not getting the correct answers then don't worry, NCERT solutions for class 10 science chapter 10 Light and Reflection and Refraction is there for you to help.
Latest : Trouble with homework? Lorem Ncert Solutions Of Class 10th Maths Chapter 8 Map lpsum 337 boatplans/wooden-kitchen/wooden-kitchen-food-toys-group ����� wooden kitchen food toys group ������� your queries of Maths and Science with step-by-step solutions instantly. Ask Mr AL. It is the point on the principal axis where a beam of light parallel to the principal axis after reflection actually meets. F represents the focal length. What is its focal length?
Hence the Focal length of the spherical mirror is 10 cm. Convex mirror usually gives a virtual and erect image. The concave mirror gives a virtual and Lorem lpsum 337 boatplans/wooden-kitchen/modern-wooden-kitchen-cabinets-in-china http://myboat337 boatplans/wooden-kitchen/modern-wooden-kitchen-cabinets-in-china.html image only when the object ncert solutions class 10th light chapter map between pole and focus.
Answer :. Convex mirrors are preferred as a rearview mirror in vehicles as:. As we know for the convex mirror. Hence Focus of the convex mirror is 15 cm. Where is the image located? Here Given Magnification:.
The object distance :. Now As we know. The image is 30 cm in front ncert solutions class 10th light chapter map the mirror. Does the light ray bend towards the normal or away from the normal? As we know that when the light goes from rare medium to denser medium the light bends towards the normal. So when the light goes from air to water it will bend toward the normal.
What is the speed of light in the glass? The speed of light in a vacuum is. As we know, from the definition of the refractive index. Refractive Ncert solutions class 10th light chapter map :. So putting those given values we get. Hence Lorem lpsum 337 boatplans/boat-plans/plywood-mini-speed-boat-plans-36 click speed of the light in the glass is.
Also, find the medium with the lowest optical density. As we know optical density is the tendency to hold absorb the light. It can be observed from table Therefore, diamond has the highest optical density and air has the lowest optical density. In which of these does the light travel fastest? Use the information given in Table As we can see from the table:. We know from the definition of refractive index, that the speed of light is higher in a medium with the lower refractive index.
So, the ncert solutions class 10th light chapter map travels fastest in water relative to kerosene and turpentine.
What is the meaning of this statement? Refractive Index shows the comparison of light speeds in two mediums. Light may travel from rarer to denser medium or from denser to rarer medium.
When we say the refractive index of diamond is 2. On the other hand, if the light travels from denser to rarer medium, that is, from diamond to air the refractive index will be the reciprocal of 2. A lens whose focal length is 1 metre is said to have the power of 1 dioptre. Where is the needle placed in front of the convex lens if the image is equal to the ncert solutions class 10th light chapter map of the object?
Also, find the power of the lens. Since the image formed by the lens is real and inverted it is formed on the side opposite to the one where the object is placed.
Let the object position be u. The needle is placed 50 cm in front of the lens. Using lens formula we. Power of the lens P is given by. The power of the lens P is 4 Dioptre. The focal length of a concave ncert solutions class 10th light chapter map is negative.
The Power ncert solutions class 10th light chapter map the lens is - 0. Which one of the following materials cannot be used to make a lens? Clay cannot be used to make a lens. The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object? The position of the object should be between the pole of the mirror and its principal focus.
Where should an object be placed in front of a convex lens to get a real image of the size of the object? An object should be placed at twice the focal length in front of a convex lens to get a real image of the size of the object.
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. The mirror and the lens are both concave. No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be. The mirror is likely to be either plane or convex. Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
I would prefer to use a convex lens of focal length 5 cm while reading small letters found in a dictionary because a convex lens gives magnified image if the object is in between focus and radius of curvature and the magnification Lorem lpsum 337 boatplans/aluminum-boats/aluminum-boats-houston-tx-80 aluminum boats houston tx be high for shorter focal length.
We wish to obtain an erect image of an object, using a concave mirror of focal length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case. For the image to be erect it has to be virtual and therefore as per convention v has to be positive.
Therefore the object must be placed between the pole and focus of the mirror. The image formed would be virtual and larger than the object.
Support your answer with reason. A concave mirror is used for headlights of a car as they can produce parallel beams of high intensity which can travel through large distances if the source of light is placed at the focus of the mirror.
A convex mirror also has a larger field of view as compared to a plane mirror of the same size. The concave mirror would be used in a solar furnace to concentrate the incident rays from the sun on a solar panel. 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. The lens would produce a complete image. Only the brightness of ncert solutions class 10th light chapter map image would be diminished.
Verification by experiment:. Apparatus required: a convex lens, a screen and a candlelight. Place screen Lorem lpsum 337 boatplans/boat/foam-fiberglass-boat-construction-type foam fiberglass construction type a lens placed vertically. Move the candle to obtain a clear full-length image of a candle on the screen. Cover half of the lens with the black paper without disturbing the position of the lens. Note the ncert solutions class 10th light chapter map. Observation: Size of the image is the same but the brightness reduces.
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 nature of the image formed. Let image distance be v. The position of the image is
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