modern physics

The dimension of which of the following is the same as that of impulse ?

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The dimension of which of the following is the same as that of impulse?  (1) Volume  (2) Momentum  (3) Torque  (4) Change in the rate of momentum  Answer: (2) The quantity of impulse is force × time interval. In classical mechanics, linear momentum or translational momentum is the product of the mass and velocity of an … Read more

For which Diode is used? (1) modulation (2) oscillation (3) amplification (4) purification

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For which Diode is used ?  (1) modulation  (2) oscillation  (3) amplification  (4) purification  Answer: (4) The most common function of a diode is to allow an electric current to pass in one direction (called the diode’s forward direction), while blocking current in the opposite direction (the reverse direction).This unidirectional behavior is called recti fication or … Read more