True, the speed of the object is a scalar Quantity
In ground wave propagation, it is a method of radio wave propagation that uses the area between the surface of the earth and the ionosphere for transmission.
The factor on which the maximum range of propagation in ground wave propagation depend are as follows :
The density of ionization of the layer,.
Frequency of radio wave.
Angle at which it enters the surface.
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A box ‘A’ contains 2 white, 3 red and 2 black balls. Another box ‘B’ contains 4 white, 2 red and 3 black balls. If two balls are drawn at random, without replacement, from a randomly selected box and one ball turns out to be white while the other ball turns out to be red, then the probability that both balls are drawn from box ‘B’ is :
The interference pattern is observed at ‘P’ due to the superimposition of two rays coming out from a source ‘S’ as shown in the figure. The value of ‘’ for which maxima is obtained at ‘P’ is : (R is a perfect reflecting surface) :
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A material has normal density ρ and bulk modulus B. The increase in density of the material when it is subjected to an external additional pressure P from all sides is
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An open vessel at 270 C is heated until two-fifth of the air (assumed as an ideal gas ) in it has escaped from the vessel. Assuming that the volume of the vessel remains constant, the temperature at which the vessel has been heated is : (in K)
A particle is moving along north after moving for 2 sec with a speed of 4 m/s, its speed becomes 5m/s. What is its displacement at the end of 7 sec