10th Standard CBSE Syllabus & Materials
10th Standard CBSE
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Published on: 26/05/2021
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Questions + Answers key
Take MCQ Science Test1.
" The refractive index of carbon disulphide is 1.63." What is the meaning of this statement in relation to speed of light?
2.
When a ray of light passes from a denser medium to a rarer medium which angle is greater? Angle of incidence or angle of refraction
3.
The size of an object is 2 cm. The magnification produced by a mirror is +1. What is the size of the image?
4.
Define one dioptre.
5.
The outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror. What will be the focal length of this mirror? Which type of spherical mirror will it provide?
1.
The speed of light in carbon disulphide is 1/1.63 times the speed of light in free space.
2.
Angle of refraction.
3.
\(m=\frac { Image\quad size }{ Object\quad size } \\ +1=\frac { Image\quad size }{ 2 } =2cm\)
Image size = +2
4.
It is the power of a lens of focal length one metre.
5.
( )
\(f=\frac { R }{ 2 } =25cm\)
It will form a convex mirror.
10th Standard CBSE Syllabus & Materials
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