MEDIUM
12th Karnataka Board
IMPORTANT
Earn 100
Obtain the equation for apparent depth.
Important Questions on Ray Optics and Optical Instruments
MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 1
A container contains water up to a height of and there is a point source at the centre of the bottom of the container. A rubber ring of radius floats centrally on the water. The ceiling of the room is above the water surface.
(a) Find the radius of the shadow of the radius of the ring formed on the ceiling if .
(b) Find the maximum value of for which the shadow of the ring is formed on the ceiling. Refractive index of water.
MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 69
We often state that the speed of light in vacuum is about and the average speed of sound in air is about . Why do you think the term 'average' is used to describe the speed of sound in the air but not the speed of light in vacuum?EASY
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 71
What are the different types of beam of lights?HARD
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 73
Derive the equation for the angle of deviation produced by a prism and thus obtain the equation for the refractive index of material of the prismEASY
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 78
Define aperture and angular aperture.MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 79
Show the formation of image in a concave mirror through a ray diagram and derive the lens equation.HARD
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 80
What are non paraxial rays?MEDIUM
12th Karnataka Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 46
Answer the following questions:You have learnt that plane and convex mirrors produce virtual images of objects. Can they produce real images under some circumstances? Explain.