Physics-
General
Easy
Question
A mixture of two diatomic gases exists in a closed cylinder. The volumes and velocity of sound in the two gases are 
and 
respectively. Determine the velocity of sound in the gaseous mixture. (Pressure of gas remains constant)
The correct answer is:
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[use 
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A long rope is design as shown in the figure such away that v independent of z is distance from point of suspension. For such a rope cannot be constant. Where is linear density of rope. what is the general equation for [use as mass per unit length of the rope at point z=0 ]
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A tuning fork of frequency 250 Hz produces 4 beats per second with a wire of length 25 cm vibrating in its fundamental mode. The beat frequency decreases when the length is slightly shortened. What could be the minimum length by which the wire be shortened so that it produces no beats with the tuning fork?
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100+(-60) +(-30) =
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The two consecutive prime numbers with a difference 2 are called
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