HARD
12th Odisha Board
IMPORTANT
Earn 100
With a neat ray diagram, describe the principle, working and use of an astronomical telescope.
Important Questions on Eye and Optical Instruments
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 1
Loss of ability of eye to focus on near and far object with advancing age is called
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 2
With a simple microscope,if the final image is located at the least distance of distinct vision, (i.e. ) from the eye placed close to the lens, then the magnifying power isEASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 3
For distinct vision/normal vision, eye is focussed on an object atEASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 4
A myopic patient usesMEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 5
A presbyopic patient can see objects only when they lie between and from the eye. Then the focal length of the correcting lens required while reading is MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 2
A long-sighted person can see clearly at any distance more than . What kind of lens should he use in spectacles to be able to read print placed at from his eye? What is the power of this lens?EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 3
Correct the following sentence:
One of the reasons for short-sight in a person is flattening of the eyeball.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 13 - Eye and Optical Instruments>MODEL QUESTIONS>Q 5
Correct the following sentence:
For a simple microscope with image at infinity the magnifying power is given as , where is the distance of distinct vision and is the focal length of the lens used in simple microscope.
