Convex and concave mirrors are examples of?
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________________ refers to the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.
Borosilicate glass wear is used in microwave oven because
Which one of the following is the value of one nanometer?
1 nanometer (nm) of length
Equals: 0.00000010 centimetres (cm) in length.
This is equal to 10^-7 cm.
Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.
The force ultimately responsible for mass movement
Choose the most appropriate answer:In which atmospheric layer are the communication satellites located?
The communication satellites are located in Ionosphere.
The spring balance works on the principle of __________
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