Knife is an example for
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The centre of the reflecting surface of a spherical mirror is called the
If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength?
A charge of 2 C passes from one point to the other in a circuit. If the potential difference between the two points is 5 V, the amount of work done is
A unit of power is called a
What is the SI unit of Charge?
A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance X1, in the first 10 s and distance X2 in the remaining 10 s, then which of the following is true?
Sound CANNOT travel through
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