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The magnifying power of an astronomical telescope at normal adjustment is:

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Important Questions on Optical Instruments

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 7

The focal length of the objective of a microscope and a telescope is increased. Which of the following statement is correct?

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 8
The objective in a reflecting telescope is:
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 9
The resolving power of a telescope depends on which one of the following factors?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 10
Which one is the correct formula for the resolving limit of a telescope?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 11

The aperture of the objective of a telescope is 0.1metre and the wavelength of light is 6000 Å. Resolving limit will be nearly:

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 12

How the resolving power changes when the space between the object and the objective of a microscope is filled with water?

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 1
What is the least distance of distinct vision?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 5 - Optical Instruments>QUESTIONS>Q 2
Distant objects which appear quite small with naked eye, appear larger through a telescope; how?