Draw the following diagram in your answer book and show the formation of image of the object AB with the help of suitable rays :
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The radius of curvature of a concave mirror is 50 cm. Where should an object be placed in the mirror, so as to form its image at infinity? Justify your answer.All In One Science
A perfecting reflecting mirror has an area of 1cm2. Light energy is allowed to fall on it for an hour at the rate of 10 Wcm-2. The force that acts on the mirror isAll In One Science
Mr. Raghav, grade 6 teacher find that his students do not draw when he draws on the board. Every time he had to turn towards them to see whether they draw and label the diagrams. Arav, one of his student fixed two big convex mirrors at the two sides of the black board. With this Mr. Raghav was able to draw and also supervise his students through the mirror. All the students started doing their work property.
(i) Which characteristics of convex lens, let Mr. Raghav to do both his job at the same time?
(ii) What value did Arav and Mr. Raghav show?All In One Science
The refractive index of lens flint glass is 1.65 and for alcohol, it is 1.36 with respect to air, then the refractive index of the dens flint glass with respect to alcohol isAll In One Science
An object is placed at the centre of curvature of a concave mirror. The distance between its image and the pole isAll In One Science