Now angle of incidence = 30 + 10 = 40° ;
Angle between the incident ray and new reflected ray = 40 × 2 = 80°;
sharon kalunda answered the question on May 31, 2019 at 10:32
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Define power of a lens and give its units
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Define power of a lens and give its units
Date posted:
May 31, 2019
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Answers (1)
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Suppose that an object is attached to a spring balance on the Earth's surface and Earth's speed of rotation is gradually increased. What effect, if...
(Solved)
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May 31, 2019
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Answers (1)
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May 31, 2019
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May 31, 2019
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Give a reason why the driver of the car has to move through the same bend at a lower speed during a rainy day.
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May 31, 2019
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May 31, 2019
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May 31, 2019
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Answers (1)
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The figure below shows details of an experiment performed by a student and the results taken. (take the density of water as 1.0g/cm3)
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(Solved)
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May 31, 2019
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Answers (1)
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May 31, 2019
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Date posted:
May 31, 2019
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Answers (1)
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The illustration below is used to produce a measured rise in temperature of a liquid using electrical energy.
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(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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(Solved)
You are provided with the following
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Date posted:
May 31, 2019
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Answers (1)
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(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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The figure below shows a block of 5kg pulled up with a force of 30N through an inclined plane at 30°.
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(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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A certain mass of hydrogen gas occupies a volume of 1.6m3 at a pressure of 1.5 × 105 Pa and a temperature of 220c.Determine the...
(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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A glass capillary contains enclosed air by a thread of mercury 15cm long when the tube is horizontal, the length of the enclosed air column...
(Solved)
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Date posted:
May 31, 2019
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Answers (1)
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A car of mass 800g is initially moving at 25m/s. Calculate the force needed to bring the car to rest over a distance of 20m.
(Solved)
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Date posted:
May 31, 2019
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Answers (1)