Question

पिचतजाकालीमार.
12 एक उत्तल लेंस की फोकस दूरी 40 से.मी. है। लेस की क्षमता की गणना कीजिए
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Answer 1

Answer:

Speed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance (a scalar quantity) per time ratio. ... On the other hand, velocity is a vector quantity; it is direction-aware. Velocity is the rate at which the position changes.