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CBSE Class 12-science Answered

1. The interior of a hollow metal sphere is polished to serve as a mirror. At a point 12cm from the centre of the sphere of radius 24 cm, a point source of light is placed. Locate its image formed by two successive reflections, the first reflection taking place at the  (a) far wall (b) near wall.  2. And image produced by a concave mirror is one fourth the size of the object.  If the object is moved 10 cm towards the mirror, its image will be only half the size of the object. Calculate the focal length of the mirror. 
Asked by mridulabarua05 | 07 Feb, 2019, 09:10: AM
answered-by-expert Expert Answer
As per our policy only one question is going to be answered in one url.
Solution is attached. 
Answered by Ankit K | 07 Feb, 2019, 10:55: AM

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CBSE 12-science - Physics
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Asked by mridulabarua05 | 11 Feb, 2019, 13:10: PM
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CBSE 12-science - Physics
1. The interior of a hollow metal sphere is polished to serve as a mirror. At a point 12cm from the centre of the sphere of radius 24 cm, a point source of light is placed. Locate its image formed by two successive reflections, the first reflection taking place at the  (a) far wall (b) near wall.  2. And image produced by a concave mirror is one fourth the size of the object.  If the object is moved 10 cm towards the mirror, its image will be only half the size of the object. Calculate the focal length of the mirror. 
Asked by mridulabarua05 | 07 Feb, 2019, 09:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
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