A solid glass sphere with radius R and an index of refraction `1.5` is silvered over one hemisphere. A small object is located on the axis of the sphere at a distance 2R to the left of the vertex of the unsilvered hemisphere. Find the position of final image after all refractions and reflection have taken place.
1 Answers
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A vertical beam of light of cross sectional radius `(R)/(2)` is incident symmetrically on the curved surface of a glass hemisphere of refractive index
Correct Answer - `0.34 R`
2 Answers 1 views
An isosceles glass prism has one of its faces silvered. A light ray is incident normally on the other face which is identical in size to the silvered
Correct Answer - `mu gt (1)/(sin 72^(@))`
2 Answers 1 views
Charge of `12muC` is given toa hollow metallic sphere of radius 0.1 m. find the potential at (i) the surface of the sphere (ii) the centre of the sphe
Correct Answer - `1.08xx10^(6)V,1.08xx10^(6)V`
2 Answers 1 views
A uniformly charged sphere has a total charge of `300muC` and radius of 8 cm. find the electric field (i) at a point 16 cm from the centre of the sphe
Correct Answer - `1.05xx10^(8)NC^(-1),1.17xx10^(8)NC^(-1)`, zero
2 Answers 2 views
The left end of a long glass rod of index 1.6350 is grounded and polished to a convex spherical surface of radius 2.50 cm. A small object is located i
Correct Answer - `-0.0777`
2 Answers 1 views
A glass sphere with `10 cm` radius has a `5 cm` radius spherical hole at its centre. A narraow beam of parallel light is directed into the sphere. Whe
Correct Answer - 5 cm of the left of the surface of sphere
2 Answers 1 views
A hemispherical portion of the surface of a solid glass sphere (mu = 1.5) of radius r is silvered to make the inner side reflecting. An object is plac
Correct Answer - At the pole of silvered face
2 Answers 1 views
Two thin similar watch glass pieces are joined together,front to front ,with near convex portion silvered and the combination of glass pieces is place
Correct Answer - 15 cm towards the combination
2 Answers 1 views
A luminous object O is located at the bottom of a big pool of liquid of refractive index `mu` and depth h. The object O emits rays upwards in all dire
Correct Answer - Rays beyond the circle are totally reflected into the liquid, Radius `=(h)/(sqrt(mu^(2)-1))` Area `=(pi h^(2))/(mu^(2)-1)`
2 Answers 3 views
A glass sphere of radius 15 cm has a small bubble 6 cm from its centre. The bubble is viewed along a diameter of the sphere from the side on which it
Correct Answer - Virtual image is seen at 7.5 cm from the spherical surface
2 Answers 2 views