Principal axis – this is an imaginary line which passes through the optical centre at right angle to the lens.
Principal focus – this is a point through which all rays travelling parallel to the principal
Vicky001 answered the question on September 24, 2017 at 19:56
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State the properties of lens
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State the properties of lens
Date posted:
September 24, 2017
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Give two types of lenses
Date posted:
September 24, 2017
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September 24, 2017
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Date posted:
September 24, 2017
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Date posted:
September 24, 2017
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Date posted:
September 24, 2017
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Date posted:
September 24, 2017
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A force of 100 N is applied to an area of 100 square millimeters. What is the pressure exerted on the area?
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A force of 100 N is applied to an area of 100 square millimeters. What is the pressure exerted on the area?
Date posted:
September 24, 2017
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Trucks which carry heavy loads have many wheels. Explain?
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Date posted:
September 24, 2017
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Date posted:
September 24, 2017
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Why is it easier to push a sharp pin through a cardboard than it is to push a blunt one through the same material using...
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Date posted:
September 24, 2017
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State any two properties of magnets.
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State any two properties of magnets.
Date posted:
September 24, 2017
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State any three magnetic materials
Date posted:
September 24, 2017
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Describe a simple experiment on how to determine the focal length of the concave mirror.
(Solved)
Describe a simple experiment on how to determine the focal length of the concave mirror.
Date posted:
September 24, 2017
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State one application of concave mirrors
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State one application of concave mirrors
Date posted:
September 24, 2017
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State two applications of parabolic mirrors.
(Solved)
State two applications of parabolic mirrors.
Date posted:
September 24, 2017
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State three rays that are usually used to locate images in curved mirrors by ray construction.
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State three rays that are usually used to locate images in curved mirrors by ray construction.
Date posted:
September 24, 2017
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(a) List and describe the three states of equilibrium (b) State two applications of stability
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(a) List and describe the three states of equilibrium
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Date posted:
September 23, 2017
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In relation to clockwise and anticlockwise moments, state the law of moments. State the units of moments...
(Solved)
In relation to clockwise and anticlockwise moments state the law of moments.
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Date posted:
September 23, 2017
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(a) State Newton’s first law of motion (b) Distinguish between heat capacity and specific heat capacity of a body
(Solved)
(a) State Newton’s first law of motion
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Date posted:
September 21, 2017
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