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The curved shining surface of a spoon acts as a mirror. The most common example of a curved mirror is a spherical mirror. If the reflecting surface of a spherical mirror is concave, it is called a concave mirror. If the reflecting surface is convex, then it is a convex mirror (Fig. 15.12).
Access Answers of NCERT Solutions for Class 7 Science Chapter 15 Light. Exercise Questions. 1. Fill in the blanks. (a) An image that cannot be obtained on a screen is called a ____________. (b) Image formed by a convex __________ is always virtual and smaller in size.
30 lis 2023 · Convex Lens-Convex lenses can form real, inverted images when the object is placed beyond the focal point and virtual, erect images when the object is very close to the lens. This versatility allows for varied applications like in cameras or magnifying glasses.
25 wrz 2019 · State two differences between a convex and a concave lens. Q.8. Give one use each of a concave and a convex mirror.Ans. Use of concave mirror: Concave mirror is used by dentists to examine the teeth. Use of convex mirror: Convex mirror is used as side view mirror in vehicles. Q.9.
27 sty 2024 · CBSE Class 7 Science Notes Chapter 15 Light Pdf free download is part of Class 7 Science Notes for Quick Revision. Here we have given NCERT Class 7 Science Notes Chapter 15 Light.
Image formed by a convex mirror is always virtual and smaller in size. An image formed by a plane mirror is always of the same size as that of the object. An image which can be obtained on a screen is called a real image. An image formed by a concave lens cannot be obtained on a screen.
31 gru 2021 · Convex lens: A convex lens can form real and inverted image. When the object is placed very close to the lens, the image formed is virtual, erect and magnified. Concave lens: A concave lens always forms erect, virtual and smaller image than the object.
