Recent questions in Physics

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2 answers

Describe the hazards of air pollution by sulphur (IV) oxide.

asked Aug 23, 2021 in Physics Form 3 by anony mous

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1 answer

a concave mirror of focal length 20 cm forms a real image three times the size of the object. If the object height is 4cm; determine, using graphical method, the:

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

State two differences between a concave and a convex reflectors

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

Define magnification

asked Aug 23, 2021 in Physics Form 1 by anony mous

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1 answer

A glass block of thickness 12 cm is placed on a mark placed on a plain paper. The mark is viewed normally through the glass. Calculate the apparent depth of the mark and hence the vertical displacement. (refractive index of glass is 1.5)

asked Aug 23, 2021 in Physics Form 1 by anony mous

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1 answer

Given that the refractive index of diamond is 2.42 and the velocity of light in air 3.0 X 108 m/s,calculate the velocity of light in diamond.

asked Aug 23, 2021 in Physics Form 3 by anony mous

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1 answer

Define the term total internal reflection as used in refraction

asked Aug 23, 2021 in Physics Form 3 by anony mous

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1 answer

Two plane mirrors M1 and M2 and inclined to each other and a ray of light shone on M1 as shown:Show on the diagram the path followed by the ray until it is reflected by M2

asked Aug 23, 2021 in Physics Form 1 by anony mous

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1 answer

The figure below shows an object placed in front of a concave mirror. On the same diagram, locate the position of the image

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

A person stands between two high walls d metres apart. He stands 400m from the nearer wall. He blows a whistle and hears two echoes, the first one after 2.5 seconds and the second one 2 seconds later. Determine:

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

The figure below shows the displacement-time graph of a wave travelling at 0.4ms−1 displacement time graph of wave travelling at 0.4 How many complete waves are shown? Determine the period time of the wave

asked Aug 23, 2021 in Physics Form 2 by anony mous

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3 answers

Define an echo.

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

State three methods of making magnets.

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

In estimating the height of a tree, the following measurements were recorded: Height of the rod = 180cm. Length of the shadow of the rod = 116cm Length of the shadow of the tree = 420cm Calculate the height of the tree.

asked Aug 23, 2021 in Physics Form 1 by anony mous

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1 answer

In the figure the arrow indicates the direction of the current in the conductor. Sketch on the diagram the magnetic field pattern due to the current.

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

Complete the figure below to show the position of the image of object A in the mirror M.

asked Aug 23, 2021 in Physics Form 1 by anony mous

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1 answer

A parent comes to you seeking your advice whether to use a white shawl or a black one to wrap her child to kept it warm. Which shawl would you advice to use and why?

asked Aug 23, 2021 in Physics Form 1 by anony mous

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3 answers

The diagram in figure 7 below shows one method of making a magnet. What polarity is at X and Y when the switch is closed.

asked Aug 23, 2021 in Physics Form 2 by anony mous

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1 answer

Draw the magnetic field pattern around the arrangement shown below

asked Aug 23, 2021 in Physics Form 2 by anony mous

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2 answers

What is dispersion of light?

asked Aug 23, 2021 in Physics Form 3 by anony mous

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