A lens is conventionally defined as a piece of glass which is used to focus or change the direction of a beam of light passing through it.
Vicky001 answered the question on September 24, 2017 at 19:50
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Define matter
(Solved)
Define matter
Date posted:
September 24, 2017
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State three properties of liquids used in the brake fluid.
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State the properties of a hydraulic brake fluid.
Date posted:
September 24, 2017
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How is the pressure in liquids affected by the height?
(Solved)
How is the pressure in liquids affected by the height?
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?
(Solved)
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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Answers (1)
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Trucks which carry heavy loads have many wheels. Explain?
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Trucks which carry heavy loads have many wheels. Explain?
Date posted:
September 24, 2017
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How is the pressure related to force when the area is kept constant?
(Solved)
How is the pressure related to force when the area is kept constant?
Date posted:
September 24, 2017
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Answers (1)
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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...
(Solved)
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 the force.
Date posted:
September 24, 2017
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Answers (1)
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State any two properties of magnets.
(Solved)
State any two properties of magnets.
Date posted:
September 24, 2017
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State any three magnetic materials
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State any three magnetic materials
Date posted:
September 24, 2017
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Answers (1)
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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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Answers (1)
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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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Answers (1)
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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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Answers (1)
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State three rays that are usually used to locate images in curved mirrors by ray construction.
(Solved)
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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Answers (1)
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(a) List and describe the three states of equilibrium (b) State two applications of stability
(Solved)
(a) List and describe the three states of equilibrium
(b) State two applications of stability
Date posted:
September 23, 2017
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Answers (1)
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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.
State the units of moments of a force.
Date posted:
September 23, 2017
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Answers (1)
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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
(b) Distinguish between heat capacity and specific heat capacity of a body
Date posted:
September 21, 2017
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Answers (1)
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Light travels through glass of of light in air = 3.0 x 108 m/s) refractive index 1.5 with a speed v. Calculate the value of...
(Solved)
18.Light travels through glass of of light in air = 3.0 x 108 m/s) refractive index 1.5 with a speed v. Calculate the value of v
Date posted:
September 21, 2017
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Answers (1)
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State two factors that affect the rate of diffusion in fluids.
(Solved)
State two factors that affect the rate of diffusion in fluids.
Date posted:
September 21, 2017
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Answers (1)
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What do you understand by the term sublimation.
(Solved)
What do you understand by the term sublimation.
Date posted:
September 21, 2017
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Answers (1)
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State the kinetic theory of matter.
(Solved)
State the kinetic theory of matter.
Date posted:
September 21, 2017
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Answers (1)