Physics
The below diagram shows that an observer sees the image of an object O at I.
(a) Name and define the phenomenon responsible for seeing the image at a different position.
(b) State the effect on X when:
- Y increases
- Y decreases
Related Questions
The diagram below shows a fish in the tank and its image seen in the surface of water.
(a) Name the phenomenon responsible for the formation of this image.
(b) Complete the path of the ray through the glass prism of critical angle 42° till it emerges out of the prism.
(a) The refractive index of water is 1.33 at a certain temperature. When the temperature of water is increased by 40°C, the refractive index changes to 'x'. State whether x < 1.33 or x > 1.33.
(b) State two differences between normal reflection and total internal reflection.
An object is placed at a distance 24 cm in front of a convex lens of focal length 8 cm.
(a) What is the nature of the image so formed?
(b) Calculate the distance of the image from the lens.
When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.
(a) Which colour will show the maximum angle of deviation and which colour will show the minimum angle of deviation?
(b) If instead of sunlight, a green-coloured ray is passed through a glass prism. What will be the colour of the emergent ray?